Marquette iron-mining district and Republic trough :
field trip /
by Jacob E. Gair.

APA Citation

Gair, J. Eugene., Geological Survey (U.S.). (1964). Marquette iron-mining district and Republic trough: field trip. [Washington]: Dept. of the Interior, U.S. Geological Survey.

MLA Citation

Gair, Jacob Eugene, 1922-, and Geological Survey (U.S.). Marquette Iron-mining District And Republic Trough: Field Trip. [Washington]: Dept. of the Interior, U.S. Geological Survey, 1964.

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