GUPTA O P. (2019). Elements of Water Pollution Control Engineering (1st.). KHANNA PUBLICATION.
Citazione stile Chigago Style (17a edizione)GUPTA O P. Elements of Water Pollution Control Engineering. 1st. NEW DELHI: KHANNA PUBLICATION, 2019.
Citatione MLA (9a ed.)GUPTA O P. Elements of Water Pollution Control Engineering. 1st. KHANNA PUBLICATION, 2019.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.