Seed, P. (1996). Day services for people with learning disabilities. Jessica Kingsley Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSeed, Philip. Day Services for People with Learning Disabilities. London: Jessica Kingsley Pub, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSeed, Philip. Day Services for People with Learning Disabilities. Jessica Kingsley Pub, 1996.
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