APA (7th ed.) Citation

Sierra Club. Upper Columbia River Group, Leon, R., Buckham, M. E., & Buckham, J. (1988). Spokane trail guide #2. Sierra Club-Spokane Group.

Chicago Style (17th ed.) Citation

Sierra Club. Upper Columbia River Group, Rich Leon, M. E. Buckham, and Jim Buckham. Spokane Trail Guide #2. Spokane, Wash.: Sierra Club-Spokane Group, 1988.

MLA (8th ed.) Citation

Sierra Club. Upper Columbia River Group, et al. Spokane Trail Guide #2. Sierra Club-Spokane Group, 1988.

Warning: These citations may not always be 100% accurate.