Beard, Ruth Mary.
An outline of Piaget's developmental psychology for students and teachers, by Ruth M. Beard. - London, Routledge & K. Paul, 1969. - xvi, 128 p. illus. 19 cm.
0710063407
75386277
Child psychology.
BF721 / .B33
370.15
An outline of Piaget's developmental psychology for students and teachers, by Ruth M. Beard. - London, Routledge & K. Paul, 1969. - xvi, 128 p. illus. 19 cm.
0710063407
75386277
Child psychology.
BF721 / .B33
370.15