APA

University of Nebraska State Museum, . (1939). Bulletin of the University of Nebraska State Museum. Lincoln (Nebraska, EE.UU.): University of Nebraska State Museum.

Chicago

University of Nebraska State Museum, . 1939. Bulletin of the University of Nebraska State Museum. Lincoln (Nebraska, EE.UU.): University of Nebraska State Museum.

Harvard

University of Nebraska State Museum, . (1939). Bulletin of the University of Nebraska State Museum. Lincoln (Nebraska, EE.UU.): University of Nebraska State Museum.

MLA

University of Nebraska State Museum, . Bulletin of the University of Nebraska State Museum. Lincoln (Nebraska, EE.UU.): University of Nebraska State Museum. 1939.