WOLF, THETA HOLMES.
The effect of praise and competition on the persisting behavior of kindergarten children. (University of Minnesota, the Institute of Child Welfare monograph series, no. 15)
WOLF, THETA HOLMES. The effect of praise and competition on the persisting behavior of kindergarten children. (University of Minnesota, the Institute of Child Welfare monograph series, no. 15) © 16Sep38; A122032. University of Minnesota (PWH); 6Jun66; R387190.
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