Sluss, D. J. (2005). Supporting play: Birth through age eight. Thomson Delmar Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSluss, Dorothy Justus. Supporting Play: Birth Through Age Eight. Clifton Park, NY: Thomson Delmar Learning, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSluss, Dorothy Justus. Supporting Play: Birth Through Age Eight. Thomson Delmar Learning, 2005.
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