TY - BOOK ID - 6379187 TI - Theory and problems of child development AU - Ausubel, David P. AU - Sullivan, Edmund V. PY - 1970 SN - 0808906410 9780808906414 PB - New York (N.Y.): Grune & Stratton, DB - UniCat KW - Child Psychology KW - Child psychology. KW - Child psychology UR - https://www.unicat.be/uniCat?func=search&query=sysid:6379187 AB - ER -