Cita APA (7a ed.)

Pratt, D., & Ropes, L. (1978). 35-mm slides: A manual for technical presentations. American Association of Petroleum Geologists.

Cita Chicago Style (17a ed.)

Pratt, Dan, y Lev Ropes. 35-mm Slides: A Manual for Technical Presentations. Tulsa, Okla.: American Association of Petroleum Geologists, 1978.

Cita MLA (9a ed.)

Pratt, Dan, y Lev Ropes. 35-mm Slides: A Manual for Technical Presentations. American Association of Petroleum Geologists, 1978.