Citazione Stile APA (7a Edizione)

Singh, Y. (2018). Environmental Science. New Age International Publishers.

Citazione stile Chigago Style (17a edizione)

Singh, Y.K. Environmental Science. NEW DELHI: New Age International Publishers, 2018.

Citatione MLA (9a ed.)

Singh, Y.K. Environmental Science. New Age International Publishers, 2018.