APA (7th ed.) Citation

Imlay, R. W. (1975). Stratigraphic distribution and zonation of Jurassic (callovian) ammonites in southern Alaska: Studies of Callovian ammonites from southern Alaska provide correlations with lower and middle Callovian ammonite zones of Europe. U.S. Print. Office.

Chicago Style (17th ed.) Citation

Imlay, Ralph Willard. Stratigraphic Distribution and Zonation of Jurassic (callovian) Ammonites in Southern Alaska: Studies of Callovian Ammonites from Southern Alaska Provide Correlations with Lower and Middle Callovian Ammonite Zones of Europe. Washington: U.S. Print. Office, 1975.

MLA (9th ed.) Citation

Imlay, Ralph Willard. Stratigraphic Distribution and Zonation of Jurassic (callovian) Ammonites in Southern Alaska: Studies of Callovian Ammonites from Southern Alaska Provide Correlations with Lower and Middle Callovian Ammonite Zones of Europe. U.S. Print. Office, 1975.