APA (7th ed.) Citation

Foster, H. L. (1969). Reconnaissance geology of the Eagle A-1 and A-2 quadrangles, Alaska: A brief description of the geology of the Eagle A-1 and A-2 quadrangles, a part of the Fortymile placer gold mining country. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Foster, Helen Laura. Reconnaissance Geology of the Eagle A-1 and A-2 Quadrangles, Alaska: A Brief Description of the Geology of the Eagle A-1 and A-2 Quadrangles, a Part of the Fortymile Placer Gold Mining Country. [Washington, D.C.]: United States Department of the Interior, Geological Survey, 1969.

MLA (9th ed.) Citation

Foster, Helen Laura. Reconnaissance Geology of the Eagle A-1 and A-2 Quadrangles, Alaska: A Brief Description of the Geology of the Eagle A-1 and A-2 Quadrangles, a Part of the Fortymile Placer Gold Mining Country. United States Department of the Interior, Geological Survey, 1969.