APA (7th ed.) Citation

Abramowitz, M., & Aldrich, B. Directory of data files.

Chicago Style (17th ed.) Citation

Abramowitz, Molly, and Barbara Aldrich. Directory of Data Files.

MLA (9th ed.) Citation

Abramowitz, Molly, and Barbara Aldrich. Directory of Data Files.

Warning: These citations may not always be 100% accurate.