Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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