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.
Παραπομπή Chicago StyleSalim Ali και 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.
Παραπομπή MLASalim Ali και 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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