Cita APA (7a ed.)
Snow, B. K., Snow, D., & Busby, J. (1988). Birds and berries: A study of an ecological interaction. T & A D Poyser.
Cita Chicago Style (17a ed.)
Snow, Barbara K., David Snow, y John Busby. Birds and Berries: A Study of an Ecological Interaction. Calton [Scotland]: T & A D Poyser, 1988.
Cita MLA (9a ed.)
Snow, Barbara K., et al. Birds and Berries: A Study of an Ecological Interaction. T & A D Poyser, 1988.
Precaución: Estas citas no son 100% exactas.