Kramer, J. 1., & Plotkin, M. J. 1. (1989). The World Wildlife Fund book of orchids. New York: Abbeville Press Publishers.
Chicago Style CitationKramer, Jack 1927-, and Mark J. 1955- Plotkin. The World Wildlife Fund Book of Orchids. New York: Abbeville Press Publishers, 1989.
MLA CitationKramer, Jack 1927-, and Mark J. 1955- Plotkin. The World Wildlife Fund Book of Orchids. New York: Abbeville Press Publishers, 1989.
Warning: These citations may not always be 100% accurate.