00674nam a2200229Ia 4500 153269 BIBL 20160527200106.0 720803s1970 xx 000 0 eng u (OCoLC)00373153 AKR SER MPC PUXA Q181 .M16 372.35 20 Mark, Steven Joseph Local 131151 Source book of science experiments for elementary grades. [1st ed.] New York Vantage Press [1970] 384 p. illus. Science Experiments. Local 166868 Science Study and teaching (Elementary) Local 166868 125542 125542 0 0 ddc 0 372_350000000000000_M345S 0 abl 292129 1 1 17 2016-05-27 Baker 6.95 230250 0 372.35 m345s 60000001987467 2016-05-27 00:00:00 r:153269 z:NCC:D 6