Saya mau tau Karya terpilih dari Sidney Dillon Ripley

The Land and Wildlife of Tropical Asia (1964; Series: LIFE Nature Library)

Rails of the World: A Monograph of the Family Rallidae (1977)

Birds of Bhutan, dengan Salim Ali and Biswamoy Biswas

Handbook of the Birds of India and Pakistan, dengan Salim Ali (10 volumes)