Hauser, J. F., & Kline, M. P. (1998). Science play!: Beginning discoveries for 2- to 6-year-olds. Williamson Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHauser, Jill Frankel, और Michael P. Kline. Science Play!: Beginning Discoveries for 2- to 6-year-olds. Charlotte, Vt.: Williamson Pub., 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHauser, Jill Frankel, और Michael P. Kline. Science Play!: Beginning Discoveries for 2- to 6-year-olds. Williamson Pub., 1998.
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