APA (7th ed.) Citation

Loelkes, G. L., & Geological Survey. (1983). Land use/land cover and environmental photointerpretation keys. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Loelkes, George L., and Geological Survey. Land Use/land Cover and Environmental Photointerpretation Keys. [Reston, Va.] : Alexandria, Va.: United States Department of the Interior, Geological Survey, 1983.

MLA (8th ed.) Citation

Loelkes, George L., and Geological Survey. Land Use/land Cover and Environmental Photointerpretation Keys. United States Department of the Interior, Geological Survey, 1983.