APA (7 वां संस्करण) प्रशस्ति पत्र

University of Colombo. Demographic Training & Research Unit. (1980). Demographic atlas of Sri Lanka. Demographic Training and Research Unit, University of Colombo, Sri Lanka.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

University of Colombo. Demographic Training & Research Unit. Demographic Atlas of Sri Lanka. Colombo: Demographic Training and Research Unit, University of Colombo, Sri Lanka, 1980.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

University of Colombo. Demographic Training & Research Unit. Demographic Atlas of Sri Lanka. Demographic Training and Research Unit, University of Colombo, Sri Lanka, 1980.

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