TY - BOOK AU - Sprinthall, Richard C., AU - Sprinthall, Norman A., ED - ED - ED - ED - TI - : a developmental approach SN - 0201068729 (hardbound) SN - 2 PY - 1981///.;copyright 1981.46 CY - Reading, Massachusets PB - Addison-Wesley Publishing Company KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Educational psychology N1 - Includes bibliographical references and index; 5; Professional ER -