1970 ESS: Elementary Science Study, Teacher's Guide for Pattern Blocks (Paperback/Staple Bound)(10.9"x8.25") by Frieda Ployer & Norma Arnow ***17586 ***ISBN-13: 9780070175860 ***Condition: Good Used ***48 Pages @math08.2side*;1g>mcgh.math ASKU#x122624v