Royal Society for Mentally Handicapped Children & Adults. (1957). Journal of Mental Deficiency Research. Blackwell Scientific Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoyal Society for Mentally Handicapped Children & Adults. Journal of Mental Deficiency Research. Oxford, Inglaterra: Blackwell Scientific Publications, 1957.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoyal Society for Mentally Handicapped Children & Adults. Journal of Mental Deficiency Research. Blackwell Scientific Publications, 1957.
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