Negativism of pre-school children : an observational and experimental study.

Furkejuvvon:
Bibliográfalaš dieđut
Váldodahkki: Reynolds, Martha May (autor)
Materiálatiipa: Girji
Giella:eaŋgalasgiella
Ráidu:(Teachers College ; no. 288)
Fáttát:
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Geahča maid: Negativism of pre-school children :