Cita APA

Amstrong, W. H. 1., & Amstrong, W. H. 1. (1957). Nesting and food habits of the long-eared owl in Michigan. East Lansing: Michigan State University, Publications of the Museum.

Citación estilo Chicago

Amstrong, William Holliday 1929-, y William Holliday 1929- Amstrong. Nesting and Food Habits of the Long-eared Owl in Michigan. East Lansing: Michigan State University, Publications of the Museum, 1957.

Cita MLA

Amstrong, William Holliday 1929-, y William Holliday 1929- Amstrong. Nesting and Food Habits of the Long-eared Owl in Michigan. East Lansing: Michigan State University, Publications of the Museum, 1957.