Notes on a collection of birds from Mindoro Island, Philippines
1958
Ripley, Sidney Dillon |
Rabor, Dioscoro S. |
Ripley, Sidney Dillon
Handbook of the birds of India and Pakistan together with those of Nepal, Sikkim, Bhutan and Ceylon
1968
Ali, Sálim |
Ripley, Sidney Dillon |
A synopsis of the birds of India and Pakistan together with those of Nepal, Sikkim, Bhutan and Ceylon
1961
Ripley, Sidney Dillon |