Cita APA

Barbour, M. G. 1., Burk, J. H. 1., Pitts, W. D. 1., Gilliam, F. S. 1., & Schwartz, M. W. 1. (1999). Terrestrial plant ecology (3. edition.). Menlo Park, California: Benjamin Cummings.

Citación estilo Chicago

Barbour, Michael George 1942-, Jack H. 1942- Burk, Wanna D. 1932- Pitts, Frank S. 1954- Gilliam, y Mark W. 1958- Schwartz. Terrestrial Plant Ecology. 3. edition. Menlo Park, California: Benjamin Cummings, 1999.

Cita MLA

Barbour, Michael George 1942-, et al. Terrestrial Plant Ecology. 3. edition. Menlo Park, California: Benjamin Cummings, 1999.