Sinha, R. N. (1990). Environment and human response. Concept.
Cita Chicago (17th ed.)Sinha, Ram Nandan. Environment and Human Response. New Delhi: Concept, 1990.
Cita MLA (9th ed.)Sinha, Ram Nandan. Environment and Human Response. Concept, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.