Grimmet,Richard. (1999). Birds of the Indian Subcontinent: Helm Field Guides. Oxford University.
Chicago Style (17. basım) AtıfGrimmet,Richard. Birds of the Indian Subcontinent: Helm Field Guides. London: Oxford University, 1999.
MLA (9th ed.) AtıfGrimmet,Richard. Birds of the Indian Subcontinent: Helm Field Guides. Oxford University, 1999.
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