136.7 San P2 Sandstrom, Carl Ivan The psychology of childhood and adolescence [by] C. I. Sandstrom. Tr. by Albert Read. [Harmondsworth, Middlesex ] Penguin Books [1969,c1966 ] 259 p. ilus., fotos., gráficos. 18 cm. (A pelican original) “Suggestions for further reading": p. 251