International Development Research Centre (Canada). (1983). Preventing school failure: The relationship between preschool and primary education : proceedings of a workshop on preschool research held in Bogota, Colombia, 26-29 May, 1981. International Development Research Centre.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Development Research Centre (Canada). Preventing School Failure: The Relationship Between Preschool and Primary Education : Proceedings of a Workshop on Preschool Research Held in Bogota, Colombia, 26-29 May, 1981. Ottawa, Canada: International Development Research Centre, 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रInternational Development Research Centre (Canada). Preventing School Failure: The Relationship Between Preschool and Primary Education : Proceedings of a Workshop on Preschool Research Held in Bogota, Colombia, 26-29 May, 1981. International Development Research Centre, 1983.