Langer, Jonas.
Theories of development / Jonas Langer. - New York : Holt, Rinehart and Winston, c1969. - xi, 191 p. : ill. ; 24 cm.
Includes bibliographical references.
69013564
Genetic psychology.
155 / LAT
Theories of development / Jonas Langer. - New York : Holt, Rinehart and Winston, c1969. - xi, 191 p. : ill. ; 24 cm.
Includes bibliographical references.
69013564
Genetic psychology.
155 / LAT