TRIVEDI, P. (2000). ENCYCLOPAEDIA OF ENVIORNMENT, POLLUTION, PLANNING & COSERVATION(A SET OF 6VOL.); ENVIORNMENTAL EDUCATION VOL.5. APH PUBLISHING CORPORATION.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTRIVEDI, P.R. ENCYCLOPAEDIA OF ENVIORNMENT, POLLUTION, PLANNING & COSERVATION(A SET OF 6VOL.); ENVIORNMENTAL EDUCATION VOL.5. NEW DELHI: APH PUBLISHING CORPORATION, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTRIVEDI, P.R. ENCYCLOPAEDIA OF ENVIORNMENT, POLLUTION, PLANNING & COSERVATION(A SET OF 6VOL.); ENVIORNMENTAL EDUCATION VOL.5. APH PUBLISHING CORPORATION, 2000.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.