Cita APA (7th ed.)

Larson, L., & Larson, P. P. (1982). Caving: The Sierra Club guide to spelunking. Sierra Club Books.

Cita Chicago (17th ed.)

Larson, Lane, i Peggy Pickering Larson. Caving: The Sierra Club Guide to Spelunking. San Francisco, Calif.: Sierra Club Books, 1982.

Cita MLA (8th ed.)

Larson, Lane, i Peggy Pickering Larson. Caving: The Sierra Club Guide to Spelunking. Sierra Club Books, 1982.