Langer, Jonas.
The origins of logic : six to twelve months / Jonas Langer. - New York : Academic Press, 1980. - xiii, 437 p. : ill. ; 24 cm. - Developmental psychology series .
Includes index.
Bibliography: p. 433-434.
0124361501
79023266
Cognition in infants.
Logic.
Infant psychology.
BF723.C5 / L364
160
The origins of logic : six to twelve months / Jonas Langer. - New York : Academic Press, 1980. - xiii, 437 p. : ill. ; 24 cm. - Developmental psychology series .
Includes index.
Bibliography: p. 433-434.
0124361501
79023266
Cognition in infants.
Logic.
Infant psychology.
BF723.C5 / L364
160