APA
Phytochemical Society of North America, American Society of Plant Physiologists, . (1981). Proceedings of the joint meeting of the Phytochemical Society of North America and the American Society of Plant Physiologists. New York, NY: Plenum Press.
Chicago
Phytochemical Society of North America, American Society of Plant Physiologists, . 1981. Proceedings of the joint meeting of the Phytochemical Society of North America and the American Society of Plant Physiologists. New York, NY: Plenum Press.
Harvard
Phytochemical Society of North America, American Society of Plant Physiologists, . (1981). Proceedings of the joint meeting of the Phytochemical Society of North America and the American Society of Plant Physiologists. New York, NY: Plenum Press.
MLA
Phytochemical Society of North America, American Society of Plant Physiologists, . Proceedings of the joint meeting of the Phytochemical Society of North America and the American Society of Plant Physiologists. New York, NY: Plenum Press. 1981.