APA-Zitierstil (7. Ausg.)

Gunn, C. R. (1976). Seeds and fruits of North American Papaveraceae.

Chicago-Zitierstil (17. Ausg.)

Gunn, Charles R. Seeds and Fruits of North American Papaveraceae. Washington, DC, 1976.

MLA-Zitierstil (9. Ausg.)

Gunn, Charles R. Seeds and Fruits of North American Papaveraceae. 1976.