Salim Ali & Ripley, S. (2001). Handbook of the birds of India and Pakistan together with those of Bengladesh, Nepal, Bhutan, and Sri Lanka; vol.4: Frogmouths to Pittas (2nd ed.). Oxford University Press.
Chicago Stili AlıntıSalim Ali ve S.Dilon Ripley. Handbook of the Birds of India and Pakistan Together with Those of Bengladesh, Nepal, Bhutan, and Sri Lanka; Vol.4: Frogmouths to Pittas. 2nd ed. New Delhi: Oxford University Press, 2001.
MLA AlıntıSalim Ali ve S.Dilon Ripley. Handbook of the Birds of India and Pakistan Together with Those of Bengladesh, Nepal, Bhutan, and Sri Lanka; Vol.4: Frogmouths to Pittas. 2nd ed. Oxford University Press, 2001.
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