APA
Hem J. D. ., . (1991). Study and interpretation of the chemical characteristics of natural water. Jodhpur: Scientific Publishers.
Chicago
Hem John D, . 1991. Study and interpretation of the chemical characteristics of natural water. Jodhpur: Scientific Publishers.
Harvard
Hem J. D. ., . (1991). Study and interpretation of the chemical characteristics of natural water. Jodhpur: Scientific Publishers.
MLA
Hem John D, . Study and interpretation of the chemical characteristics of natural water. Jodhpur: Scientific Publishers. 1991.