APA

GUPTA P., . (2002). METHODS IN ENVIRONMENTAL ANALYSIS WATER SOIL AND AIR. INDIA: AGROBIOS.

Chicago

GUPTA P.K, . 2002. METHODS IN ENVIRONMENTAL ANALYSIS WATER SOIL AND AIR. INDIA: AGROBIOS.

Harvard

GUPTA P., . (2002). METHODS IN ENVIRONMENTAL ANALYSIS WATER SOIL AND AIR. INDIA: AGROBIOS.

MLA

GUPTA P.K, . METHODS IN ENVIRONMENTAL ANALYSIS WATER SOIL AND AIR. INDIA: AGROBIOS. 2002.