APA aipamena

McKain, M. R., & Johnson, M. G. (2020). Plant systematics. Excelic Press.

Chicago Style aipamena

McKain, Michael R., and Matthew G. Johnson. Plant Systematics. Lewes, Delaware: Excelic Press, 2020.

MLA aipamena

McKain, Michael R., and Matthew G. Johnson. Plant Systematics. Excelic Press, 2020.