Salim Ali & Dhillon, S. (2001). Handbook of the birds of India and Pakistan together with those of Bengladesh, Nepal, Bhutan and Srilanka: Vol-1: divers to hawks (2nd ed.). Oxford University Press.
Dyfyniad Arddull ChicagoSalim Ali and S. Dhillon. Handbook of the Birds of India and Pakistan Together with Those of Bengladesh, Nepal, Bhutan and Srilanka: Vol-1: Divers to Hawks. 2nd ed. New Delhi: Oxford University Press, 2001.
Dyfyniad MLASalim Ali and S. Dhillon. Handbook of the Birds of India and Pakistan Together with Those of Bengladesh, Nepal, Bhutan and Srilanka: Vol-1: Divers to Hawks. 2nd ed. Oxford University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.