Grewal, B. (1995). Birds of the Indian Subcontinent. Local Colour.
Cita Chicago (17th ed.)Grewal, Bikram. Birds of the Indian Subcontinent. Hong Kong: Local Colour, 1995.
Cita MLA (9th ed.)Grewal, Bikram. Birds of the Indian Subcontinent. Local Colour, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.