TY - BOOK AU - Tashman,C.Mildred TI - Pictorial depth perception in preschool children PY - 1980/// CY - Ann Arbor, Mich. PB - University Microfilms International KW - Education, Preschool KW - Audio KW - visual aids N1 - Thesis (Ph.D.)-State University, 1980 ER -