Land use/land cover and environmental photointerpretation keys /
by George L. Loelkes ... [et al.].

APA Citation

Loelkes, G. L., Geological Survey (U.S.). (1983). Land use/land cover and environmental photointerpretation keys. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey .

MLA Citation

Loelkes, George L, and Geological Survey (U.S.). Land Use/land Cover And Environmental Photointerpretation Keys. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey , 1983.

Warning: These citations may not always be complete (especially for serials).