APA (7th ed.) Citation

Hack, J. T. (1957). Studies of longitudinal stream profiles in Virginia and Maryland. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Hack, John T. Studies of Longitudinal Stream Profiles in Virginia and Maryland. Washington: U.S. Govt. Print. Off, 1957.

MLA (8th ed.) Citation

Hack, John T. Studies of Longitudinal Stream Profiles in Virginia and Maryland. U.S. Govt. Print. Off, 1957.

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