Ali, Salim Handbook of the Birds of India & Pakistan : Together with those of Bangladesh, Nepal, Sikkim, Bhutan and Sri Lanka - 2 - Oxford : Oxford University Press , 1978 . - 4 v. (xvii, 267p.) : ill. - Frogmouths to Pittas . Index ISBN: 0195659376 Source: Reference Collections Subjects--Topical Terms: Aves Birds India PakistanBiology