Montana :
a state guide book /
compiled and written by the Federal writers' project of the Works projects administration for the state of Montana ; sponsored by Department of agriculture, labor and industry, state of Montana.

APA Citation

Federal Writers' Project. Montana., Writers' Program (U.S.). Montana., Montana. Department of Agriculture, L. (1939). Montana: a state guide book. New York: The Viking press.

MLA Citation

Federal Writers' Project. Montana, Writers' Program (U.S.). Montana, and Labor Montana. Department of Agriculture. Montana: a State Guide Book. New York: The Viking press, 1939.

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