APA

Campbell D. G., Hammond H. D., . (1989). Floristic inventory of tropical countries : the status of plant systematics, collections, and vegetation, plus recommendations for the future. New York: New York Botanical Garden.

Chicago

Campbell David G, Hammond H David, . 1989. Floristic inventory of tropical countries : the status of plant systematics, collections, and vegetation, plus recommendations for the future. New York: New York Botanical Garden.

Harvard

Campbell D. G., Hammond H. D., . (1989). Floristic inventory of tropical countries : the status of plant systematics, collections, and vegetation, plus recommendations for the future. New York: New York Botanical Garden.

MLA

Campbell David G, Hammond H David, . Floristic inventory of tropical countries : the status of plant systematics, collections, and vegetation, plus recommendations for the future. New York: New York Botanical Garden. 1989.