APA

Holt R., . (1943). George Washington Carver. New York: Overseas Editions.

Chicago

Holt Rackham, . 1943. George Washington Carver. New York: Overseas Editions.

Harvard

Holt R., . (1943). George Washington Carver. New York: Overseas Editions.

MLA

Holt Rackham, . George Washington Carver. New York: Overseas Editions. 1943.