APA (7 वां संस्करण) प्रशस्ति पत्र

Ceylon. Dept. of Social Services. (1949). Administration report of the Director of Social Services for..

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ceylon. Dept. of Social Services. Administration Report of the Director of Social Services for.. Colombo, 1949.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Ceylon. Dept. of Social Services. Administration Report of the Director of Social Services for.. 1949.

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