APA (7th ed.) Citation

Imlay, R. W. (1981). Early Jurassic ammonites from Alaska. U.S. G.P.O.

Chicago Style (17th ed.) Citation

Imlay, Ralph Willard. Early Jurassic Ammonites from Alaska. Washington, DC: U.S. G.P.O, 1981.

MLA (9th ed.) Citation

Imlay, Ralph Willard. Early Jurassic Ammonites from Alaska. U.S. G.P.O, 1981.

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