Cita APA (7th ed.)

Guthrie, A. B. (1947). The big sky. Houghton Mifflin.

Cita Chicago (17th ed.)

Guthrie, A. B. The Big Sky. Boston: Houghton Mifflin, 1947.

Cita MLA (8th ed.)

Guthrie, A. B. The Big Sky. Houghton Mifflin, 1947.