Cita APA (7a ed.)

Walters, D. R., Keil, D. J., & Walters, B. K. (1996). Vascular plant taxonomy (4th ed.). Kendall/Hunt.

Cita Chicago Style (17a ed.)

Walters, Dirk R., David J. Keil, y Bonnie K. Walters. Vascular Plant Taxonomy. 4th ed. Dubuque, Iowa: Kendall/Hunt, 1996.

Cita MLA (9a ed.)

Walters, Dirk R., et al. Vascular Plant Taxonomy. 4th ed. Kendall/Hunt, 1996.