APA aipamena

SINGH P P. (2004). ENVIRONMENT AND POLLUTION EDUCATION. DEEP & DEEP PUBLICATIONS.

Chicago Style aipamena

SINGH P P. ENVIRONMENT AND POLLUTION EDUCATION. NEW DELHI: DEEP & DEEP PUBLICATIONS, 2004.

MLA aipamena

SINGH P P. ENVIRONMENT AND POLLUTION EDUCATION. DEEP & DEEP PUBLICATIONS, 2004.