Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948.; Lang, Herbert, 1879-1957.; Chapin, James Paul, 1889-1964.; American Museum Congo Expedition (1909-1915); Cockerell-Mackie-Ogilvie Expedition (1931-1932)
(New York City : American Museum of Natural History, 1932)