APA aipamena

Lugn, A. L. (1935). The pleistocene geology of Nebraska. Printed by the authority of the state of Nebraska.

Chicago Style aipamena

Lugn, Alvin Leonard. The Pleistocene Geology of Nebraska. [Lincoln]: Printed by the authority of the state of Nebraska, 1935.

MLA aipamena

Lugn, Alvin Leonard. The Pleistocene Geology of Nebraska. Printed by the authority of the state of Nebraska, 1935.