APA (7th ed.) Citation
Singh, Y. K. (2006). Environmental science. New Age International (P) Ltd., Publishers.
Chicago Style (17th ed.) Citation
Singh, Y. K. Environmental Science. New Delhi: New Age International (P) Ltd., Publishers, 2006.
MLA (9th ed.) Citation
Singh, Y. K. Environmental Science. New Age International (P) Ltd., Publishers, 2006.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.