APA Style

Widtsoe, John A.. (1911). Dry-farming: A system of agriculture for countries under a low rainfall . New York: The Macmillan Company.

Chicago Style

Widtsoe, John A.. Dry-farming: A system of agriculture for countries under a low rainfall. New York: The Macmillan Company, 1911. Buku Teks.

MLA Style

Widtsoe, John A.. Dry-farming: A system of agriculture for countries under a low rainfall. New York: The Macmillan Company, 1911. Buku Teks.

Turabian Style

Widtsoe, John A.. Dry-farming: A system of agriculture for countries under a low rainfall. New York: The Macmillan Company, 1911. Buku Teks.