00753nam a2200229Ia 450000100060000000300050000600500170001100800410002801000150006902000150008405000140009908200140011310000230012724501150015026000370026530000320030250000110033450400290034565000590037470000470043370000430048063188BIBL20170223064016.0740425s1974    maua     b    00110 eng    a 73011769   a03951762550 aH62b.E44  a300/.7/1210aEhman, Lee.2Local10aToward effective instruction in secondary social studiesc[by] Lee Ehman, Howard Mehlinger [and] John Patrick.0 aBostonbHoughton Mifflinc[1974]  axiv, 458 p.billus.c25 cm.  a920518  aIncludes bibliographies. 0aSocial sciencesxStudy and teaching (Secondary)2Local10aMehlinger, Howard D.ejoint author.2Local10aPatrick, John J.,ejoint author.2LEMB