00315nam a22001217a 4500003000400000005001700004008004100021040000800062100002500070245004900095250001000144260003900154OSt20200609123659.0200609b        xxu||||| |||| 00| 0 eng d  cN/A  aJune r. chapin et al  aElementary social studiesbA practical guide  aThird  aNew yorkbLongman publishersc1996