Cita APA

Craighead, J. J., & Craighead, F. C. (1956). Hawks, owls and wildlife. Pennsylvania: Stackpole.

Citación estilo Chicago

Craighead, John Johnson, y Frank C. Craighead. Hawks, Owls and Wildlife. Pennsylvania: Stackpole, 1956.

Cita MLA

Craighead, John Johnson, y Frank C. Craighead. Hawks, Owls and Wildlife. Pennsylvania: Stackpole, 1956.