Cita APA (7a ed.)

Eiseley, L. Oregon trail: Loren Eiseley. The West.(1979).

Cita Chicago Style (17a ed.)

Eiseley, Loren. "Oregon Trail: Loren Eiseley." The West.(1979) .

Cita MLA (8a ed.)

Eiseley, Loren. "Oregon Trail: Loren Eiseley." The West.(1979), .