APA (7th ed.) Citation

Ek, C. W. (1988). Grain quality issues: A status report. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Ek, Carl W. Grain Quality Issues: A Status Report. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1988.

MLA (9th ed.) Citation

Ek, Carl W. Grain Quality Issues: A Status Report. Congressional Research Service, Library of Congress, 1988.