APA (7th ed.) Citation

Geological Survey (U.S.) & Fenneman, N. M. (1969). Set of one hundred topographic maps illustrating specified physiographic features. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Nevin Melancthon Fenneman. Set of One Hundred Topographic Maps Illustrating Specified Physiographic Features. Reston, Va.: Geological Survey, 1969.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Nevin Melancthon Fenneman. Set of One Hundred Topographic Maps Illustrating Specified Physiographic Features. Geological Survey, 1969.