APA (7 वां संस्करण) प्रशस्ति पत्र

Modak, P. B. (1999). Conducting environmental impact assessment for developing countries. OXFORD University.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Modak, Prasad Biswas. Conducting Environmental Impact Assessment for Developing Countries. New Delhi: OXFORD University, 1999.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Modak, Prasad Biswas. Conducting Environmental Impact Assessment for Developing Countries. OXFORD University, 1999.

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