APA-Zitierstil (7. Ausg.)

Smith, J. P., & Sawyer, J. O. (1978). Keys to the families and genera of vascular plants in northwest California (Rev.). Mad River Pr.

Chicago-Zitierstil (17. Ausg.)

Smith, James P., und John O. Sawyer. Keys to the Families and Genera of Vascular Plants in Northwest California. Rev. Eureka, Calif: Mad River Pr, 1978.

MLA-Zitierstil (9. Ausg.)

Smith, James P., und John O. Sawyer. Keys to the Families and Genera of Vascular Plants in Northwest California. Rev. Mad River Pr, 1978.