Cita APA

Gere Cruickshank, H. (1955). Water Birds. New York :: Nelson Doubleday,.

Citación estilo Chicago

Gere Cruickshank, H. Water Birds. New York :: Nelson Doubleday,, 1955.

Cita MLA

Gere Cruickshank, H. Water Birds. New York :: Nelson Doubleday,, 1955.