TY - BOOK AU - Harrington,Robert Gerard TI - The effects of verbal self-instruction on creative play in preschool-aged children PY - 1980/// CY - Ann Arbor, Mich. PB - University Microfilms International KW - Play KW - Child development KW - Education, Preschool N1 - Thesis (Ph.D.)-University of Iowa, 1980 ER -