Cita APA (7a ed.)

Loughlin, G. F. (1921). Mineral resources of the United States 1918. Geological Survey.

Cita Chicago Style (17a ed.)

Loughlin, G. F. Mineral Resources of the United States 1918. Washington, United States: Geological Survey, 1921.

Cita MLA (8a ed.)

Loughlin, G. F. Mineral Resources of the United States 1918. Geological Survey, 1921.