Cita APA (7th ed.)
Orians, G. H., & Christman, G. M. (1968). A comparative study of the behavior of red-winged, tricolored, and yellow-headed blackbirds. Univ. of California Pr.
Cita Chicago (17th ed.)
Orians, Gordon H., i Gene M. Christman. A Comparative Study of the Behavior of Red-winged, Tricolored, and Yellow-headed Blackbirds. Berkeley, Los Angeles: Univ. of California Pr, 1968.
Cita MLA (9th ed.)
Orians, Gordon H., i Gene M. Christman. A Comparative Study of the Behavior of Red-winged, Tricolored, and Yellow-headed Blackbirds. Univ. of California Pr, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.