Research Data

• Eurostat
• UNdata
• United Nations Databases
• Unesco Institute for Statistics
• ILOSTAT​ (International Labour Organization)
• World Bank Data & Statistics
• OECD
• Research Data Australia
• UK Data Service Discover
• US National Data Service
• SND Swedish National Data Service
• OpenAIRE

Cite the data in the text as (Copyrights Holder, Year) or Copyrights Holder (Year).

If the authors are also the copyrights holders, use: (Hinton et al., 2015) or Hinton et al. (2015).

If the copyrights holder is an organization, use its full name in the first citation: (Innovation, Science and Economic Development Canada, 2017) or Innovation, Science and Economic Development Canada (2017) and its abbreviation in the subsequent ones: (ISED, 2017) or ISED (2017).

Reference for a data set with DOI: 

Author, A. A. (Year). Title (Version Number of version) [Description of material]. Source. https://doi.org/xxxxx

The description of material can be: Data Set, Data File, User Manual, Code Book, etc.

Example:

Hinton, T. J., Jallerat, Q., Palchesko, R. N., Park, J. H., Grodzicki, M. S., Shue, H., Ramadan, M. H., Hudson, A. R., & Feinberg, A. W. (2016). Three-dimensional printing of complex biological structures by freeform reversible embedding of suspended hydrogels [Ensemble de données]. Dryad. https://doi.org/10.5061/dryad.tp4cp

More examples in the APA Citation Guide.

Here is a list of some recognized repositories in their respective fields: 

Energy

• Open Energy Information (OpenEI)
  • "Centralized repository of high-value energy research datasets aggregated from the U.S. Department of Energy’s Programs, Offices, and National Laboratories."
• Renewable Resource Data Center (RReDC) (National Renewable Energy Laboratory)
  • "Public data resulting from federally funded research conducted by the National Renewable Energy Laboratory (NREL) researchers and analysts."

Materials

• Materials Data Facility (MDF)
  • "A simple way to publish, discover, and access materials datasets."
• NOMAD Repository & Archive
  • "Host, share, and reuse materials data."

Computer and Software Engineering

• GitHub
  • "Millions of developers and companies build, ship, and maintain their software on GitHub—the largest and most advanced development platform in the world."
• Center for Applied Internet Data Analysis (CAIDA)
  • "Conducts network research and builds research infrastructure to support large-scale data collection, curation, and data distribution to the scientific research community."
• RunMyCode
  • "Enables scientists to openly share the code and data that underlie their research publications."
• Bitbucket
  • "More than just Git code management. Bitbucket gives teams one place to plan projects, collaborate on code, test, and deploy."
• SourceForge
  • "Open Source software community resource dedicated to helping open source projects be as successful as possible."
• LaunchPad
  • "Helps people to work together by making it easy to share code, bug reports, translations, and ideas."
• Other repositories

Earth and Environmental Sciences

• Pangaea
  • "Data Publisher for Earth & Environmental Science"
• Other repositories
  • @ Nature
  • @ PLOS One

Health Sciences

• @ Nature

Biomedical Sciences

• @ PLOS One

Life Sciences and Biomedical Sciences - Big data

• GigaDB
  • "Data repository supporting scientific publications in the Life/Biomedical Sciences domain."

Chemistry and Biochemistry

• @ Nature
• @ PLOS One

Physics, astrophysics, and astronomy

• @ Nature