APA (7th ed.) Citation

United States. Army. Corps of Engineers. (1990). Introduction to the Environmental Review Guide for Operations (ERGO). [U.S. Army Corps of Engineers].

Chicago Style (17th ed.) Citation

United States. Army. Corps of Engineers. Introduction to the Environmental Review Guide for Operations (ERGO). [Fort Belvoir, Va.]: [U.S. Army Corps of Engineers], 1990.

MLA (9th ed.) Citation

United States. Army. Corps of Engineers. Introduction to the Environmental Review Guide for Operations (ERGO). [U.S. Army Corps of Engineers], 1990.