एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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