Cita APA

Boyd, H., & Pirot, J. (1989). Flyways and reserve networks for water birds. Inglaterra: International Waterfowl and Wettlands.

Citación estilo Chicago

Boyd, H., y J.-Y. Pirot. Flyways and Reserve Networks for Water Birds. Inglaterra: International Waterfowl and Wettlands, 1989.

Cita MLA

Boyd, H., y J.-Y. Pirot. Flyways and Reserve Networks for Water Birds. Inglaterra: International Waterfowl and Wettlands, 1989.