00726nam a2200229Ia 4500001000700000003000500007005001700012008004100029010001500070035002000085040001800105050001500123082000800138100003600146245010900182250001200291260003300303300003300336504002900369650004000398700005800438113557BIBL20160527183617.0740930s1951    nyua     b    000 0 eng    a 51009382   a(OCoLC)01024971  aDLCcODCdSER0 aQ181b.R54  a60710aRichardson, John Sanford2Local10aMethods and materials for teaching general and physical sciencecby John S. Richardson and G. P. Cahoon.  a1st ed.0 aNew YorkbMcGraw-Hillc1951.  aviii, 485 p.billus.c24 cm.  aIncludes bibliographies. 0aSciencexStudy and teaching.2Local10aCahoon, Guybert Phillipsd1896-ejoint author.2Local