Grewal, B. (2000). Birds of the Indian Subcontenent. Westland Road.
Chicagoスタイル(17版)引用形式Grewal, Bikram. Birds of the Indian Subcontenent. Hongkong: Westland Road, 2000.
MLA(9版)引用形式Grewal, Bikram. Birds of the Indian Subcontenent. Westland Road, 2000.
警告: この引用は必ずしも正確ではありません.