APA (7th ed.) Citation

Imlay, R. W. (1970). Some Jurassic ammonites from central Saudi Arabia. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Imlay, Ralph W. Some Jurassic Ammonites from Central Saudi Arabia. Washington: U.S. Govt. Print. Off, 1970.

MLA (9th ed.) Citation

Imlay, Ralph W. Some Jurassic Ammonites from Central Saudi Arabia. U.S. Govt. Print. Off, 1970.