Cita APA (7a ed.)

Hitchcock, C. L., Cronquist, A., Ownbey, M., & Thompson, J. W. (196). Vascular plants of the pacific northwest. Seattle University of Washington Press.

Cita Chicago Style (17a ed.)

Hitchcock, C. Leo, Arthur Cronquist, Marion Ownbey, y J. W. Thompson. Vascular Plants of the Pacific Northwest. Seattle University of Washington Press, 196.

Cita MLA (8a ed.)

Hitchcock, C. Leo, et al. Vascular Plants of the Pacific Northwest. Seattle University of Washington Press, 196.

Cita IICA/CATIE

Hitchcock, C. L., Cronquist, A., Ownbey, M., ; Thompson, J. W. 196. Vascular plants of the pacific northwest. Seattle University of Washington Press.