Cita APA

Armstrong, E. A. (1945). The way birds life (3d ed.). L. Drummond ltd..

Citación estilo Chicago

Armstrong, Edward Allworthy. The Way Birds Life. 3d ed. London: L. Drummond ltd., 1945.

Cita MLA

Armstrong, Edward Allworthy. The Way Birds Life. 3d ed. L. Drummond ltd., 1945.