Ripley, S. D. A Synopsis of the Birds of India and Pakistan: Together with those of Nepal , Sikkim, Bhutan and Ceylon.
Cita Chicago (17th ed.)Ripley, Sidney Dillon. A Synopsis of the Birds of India and Pakistan: Together with Those of Nepal , Sikkim, Bhutan and Ceylon.
Cita MLA (9th ed.)Ripley, Sidney Dillon. A Synopsis of the Birds of India and Pakistan: Together with Those of Nepal , Sikkim, Bhutan and Ceylon.
Atenció: Aquestes cites poden no estar 100% correctes.