Cita APA (7th ed.)

Bubley, E., & Knauth, P. (1979). A mysterious presence: Macrophotography of plants. Workman Pub. Co..

Cita Chicago (17th ed.)

Bubley, Esther, i Percy Knauth. A Mysterious Presence: Macrophotography of Plants. New York: Workman Pub. Co., 1979.

Cita MLA (8th ed.)

Bubley, Esther, i Percy Knauth. A Mysterious Presence: Macrophotography of Plants. Workman Pub. Co., 1979.