TY - BOOK AU - Belkin,Gary S. AU - Gray,Jerry L. TI - Educational psychology: An introduction SN - 069706008X U1 - 370.15 PY - 1977/// CY - Dubuque, Iowa PB - W. C. Brown Co. KW - Educational psychology N1 - Includes index; Bibliogr.: p. 655-679 ER -