Rana, S. (2013). Essentials of ecology and environmental Science (5thed.). PHI Learning.
Citazione stile Chigago Style (17a edizione)Rana, S.V.S. Essentials of Ecology and Environmental Science. 5thed. Delhi: PHI Learning, 2013.
Citatione MLA (9a ed.)Rana, S.V.S. Essentials of Ecology and Environmental Science. 5thed. PHI Learning, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.