Salim Ali, S. Dillon Ripley, . (1987). Handbook of the Birds of India and Pakistan Vol 3. : .
Salim Ali, S. Dillon Ripley, . 1987. Handbook of the Birds of India and Pakistan Vol 3. : .
Salim Ali, S. Dillon Ripley, . Handbook of the Birds of India and Pakistan Vol 3. : . 1987.
