TY - BOOK AU - Wittrock,Merlin C. TI - Handbook of research on teaching ; edited by Merlin C. Wittrock SN - 0029003105 U1 - 370.72 23 PY - 1986///. CY - New York: PB - Macmillan, KW - Education KW - Research KW - United States N1 - A project of the American Educational Research Association; Includes index ER -