Papers presented at the celebration of the twentieth anniversary of the New York Botanical Garden, September 6-9, 1915.
APA Citation
New York Botanical Garden. (1916). Papers presented at the celebration of the twentieth anniversary of the New York Botanical Garden, September 6-9, 1915. New York: The Garden.
MLA Citation
New York Botanical Garden. Papers Presented At the Celebration of the Twentieth Anniversary of the New York Botanical Garden, September 6-9, 1915. New York: The Garden, 1916.
Warning: These citations may not always be complete (especially for serials).