APA (7th ed.) Citation

Singh, N., & Singh, N. (1976). Economics and the crisis of ecology. O.U.P.

Chicago Style (17th ed.) Citation

Singh, Narindar, and Narinder Singh. Economics and the Crisis of Ecology. O.U.P, 1976.

MLA (9th ed.) Citation

Singh, Narindar, and Narinder Singh. Economics and the Crisis of Ecology. O.U.P, 1976.

Warning: These citations may not always be 100% accurate.