A statistical study of wastage at school. (1972). UNITED Nations Educational Scientific and Cultural Organization, Office of Statistics. A statistical study of wastage at school: A study prepared for the International Buronu of Education. UNESCO.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रA statistical study of wastage at school. UNITED Nations Educational Scientific and Cultural Organization, Office of Statistics. A Statistical Study of wastage at School: A Study Prepared for the International Buronu of Education. UNESCO, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रA statistical study of wastage at school. UNITED Nations Educational Scientific and Cultural Organization, Office of Statistics. A Statistical Study of wastage at School: A Study Prepared for the International Buronu of Education. UNESCO, 1972.