Cita APA (7a ed.)

Stevens, G. A. (1939). Garden flowers in color: A picture encyclopedia of flowers. Macmillan.

Cita Chicago Style (17a ed.)

Stevens, G. A. Garden Flowers in Color: A Picture Encyclopedia of Flowers. New York: Macmillan, 1939.

Cita MLA (8a ed.)

Stevens, G. A. Garden Flowers in Color: A Picture Encyclopedia of Flowers. Macmillan, 1939.