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2. SOU (1972:26) Förskolan 1–2, Betänkande avgivet av 1968 ârs barnstugeutredning. (Pre-school 1–2. Report by the 1968 Pre-school Commission). Stockholm.
3. Kârrby, G. (1971) Child Rearing and the Development of Moral Structure. Almqvist & Wiksell, Stockholm.