Trích dẫn APA

(1994). The Asian waterfowl census 1987-91: Distribution and status of Asian waterfowl. Gloucester, UK: International Waterfowl and Wetlands Research Bureau.

Trích dẫn kiểu Chicago

The Asian Waterfowl Census 1987-91: Distribution and Status of Asian Waterfowl. Gloucester, UK: International Waterfowl and Wetlands Research Bureau, 1994.

Trích dẫn MLA

The Asian Waterfowl Census 1987-91: Distribution and Status of Asian Waterfowl. Gloucester, UK: International Waterfowl and Wetlands Research Bureau, 1994.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.