Salim Ali & Ripley,S.Dilon. (2001). Handbook of the birds of India and Pakistan together with those of Bengladesh, Nepal, Bhutan, and Sri Lanka; vol.5: Larks to Gray Hypocolius (2nd ed.). Oxford University Press.
Trích dẫn kiểu ChicagoSalim Ali và Ripley,S.Dilon. Handbook of the Birds of India and Pakistan Together with Those of Bengladesh, Nepal, Bhutan, and Sri Lanka; Vol.5: Larks to Gray Hypocolius. 2nd ed. New Delhi: Oxford University Press, 2001.
Trích dẫn MLASalim Ali và Ripley,S.Dilon. Handbook of the Birds of India and Pakistan Together with Those of Bengladesh, Nepal, Bhutan, and Sri Lanka; Vol.5: Larks to Gray Hypocolius. 2nd ed. Oxford University Press, 2001.
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