00754nam a2200169Ia 4500 86042 BIBL 20160527203851.0 721218s1954 nyua 000 0 eng d Blough, Glenn Orlando. 63267 Local Making and using classroom science materials in the elementary school apparatus, demonstrations, equipment, experiments. Glenn O. Blough and Marjorie H. Campbell. Illustrated by John J. O'Rourke. New York Holt, Rinehart and Winston 1954. 229 p. illus. 22 cm. Science Study and teaching (Primary) 166868 Local Scientific apparatus and instruments. 166935 Local Campbell, Marjorie Halnes 1897- joint author. 68455 Local 69956 69956 0 0 0 372_850000000000000_B657 0 evl 366603 10 10 1 2016-05-27 136695 0 372.85 B657 80000000604804 2016-05-27 00:00:00 r:86042 z:NCC:D 6