Cita APA (7a ed.)

Harnack, C. (1979). Limits of the land. Doubleday and Co.

Cita Chicago Style (17a ed.)

Harnack, Curtis. Limits of the Land. New York, Estados Unidos: Doubleday and Co, 1979.

Cita MLA (9a ed.)

Harnack, Curtis. Limits of the Land. Doubleday and Co, 1979.