Cita APA

Roberts, I. P. (1911). Fertility of the Land (12.). Macmillan Company.

Citación estilo Chicago

Roberts, Issac Phillip. Fertility of the Land. 12. New York: Macmillan Company, 1911.

Cita MLA

Roberts, Issac Phillip. Fertility of the Land. 12. Macmillan Company, 1911.

Warning: These citations may not always be 100% accurate.