TY  - BOOK
AU  - Beard,Ruth M.
TI  - An outline of Piaget's developmental psychology for students and teachers
SN  - 0710063407
AV  - BF 721  .B33 1980
PY  - 1969///
CY  - London
PB  - Routledge & Kegan Paul
KW  - Piaget, Jean,
KW  - Child psychology
N1  - Bibliography: p. 123-128
ER  -