Walsh, F. K., & Halliday, W. R. (1971). Discovery and exploration of the Oregon caves: Oregon Caves National Monument. Te-Cum-Tom Enterprises.
Style de citation Chicago (17e éd.)Walsh, Frank K., et William R. Halliday. Discovery and Exploration of the Oregon Caves: Oregon Caves National Monument. [Grants Pass, Or.: Te-Cum-Tom Enterprises, 1971.
Style de citation MLA (8e éd.)Walsh, Frank K., et William R. Halliday. Discovery and Exploration of the Oregon Caves: Oregon Caves National Monument. Te-Cum-Tom Enterprises, 1971.
Attention : ces citations peuvent ne pas être correctes à 100%.