Harrison, P. (1983). Seabirds: An identification guide. Croom Helm.
Citación estilo ChicagoHarrison, Peter. Seabirds: An Identification Guide. Kent, England, United Kingdom: Croom Helm, 1983.
Cita MLAHarrison, Peter. Seabirds: An Identification Guide. Croom Helm, 1983.
Warning: These citations may not always be 100% accurate.