Cita APA (7a ed.)

Walsh, F. K., & Halliday, W. R. (1971). Discovery and exploration of the Oregon caves: Oregon Caves National Monument. Te-Cum-Tom Enterprises.

Cita Chicago Style (17a ed.)

Walsh, Frank K., y William R. Halliday. Discovery and Exploration of the Oregon Caves: Oregon Caves National Monument. [Grants Pass, Or.: Te-Cum-Tom Enterprises, 1971.

Cita MLA (8a ed.)

Walsh, Frank K., y William R. Halliday. Discovery and Exploration of the Oregon Caves: Oregon Caves National Monument. Te-Cum-Tom Enterprises, 1971.

Precaución: Estas citas no son 100% exactas.