Cita APA (7th ed.)

Crawley, M. J. (1997). Plant Ecology (2a. ed.). Blackwell Science.

Cita Chicago (17th ed.)

Crawley, Michael J. Plant Ecology. 2a. ed. París: Blackwell Science, 1997.

Cita MLA (9th ed.)

Crawley, Michael J. Plant Ecology. 2a. ed. Blackwell Science, 1997.