Cita APA (7th ed.)

Simpson, M. G. (2006). Plant systematics. Elsevier Academic Press.

Cita Chicago (17th ed.)

Simpson, Michael G. Plant Systematics. Burlington, MA: Elsevier Academic Press, 2006.

Cita MLA (9th ed.)

Simpson, Michael G. Plant Systematics. Elsevier Academic Press, 2006.