APA (7th ed.) Citation

Gordon, M. (1969). Early Pennsylvanian ammonoids from southern Nevada. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Gordon, Mackenzie. Early Pennsylvanian Ammonoids from Southern Nevada. Washington: U.S. Govt. Print. Off, 1969.

MLA (9th ed.) Citation

Gordon, Mackenzie. Early Pennsylvanian Ammonoids from Southern Nevada. U.S. Govt. Print. Off, 1969.

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