00565nam a2200169   450000500170000000700040001700800040002104000090002505000240003410000250005824501600008326000570024330000190030065000390031970000180035870000190037620150519103651.0000000  aUOEL  aQA141.15b.L36 1961  aLankford, Francis G.  aTeacher's manual including projects and activities unit and part tests for : bessential mathematics /cFrancis G. Lankford, James F. Ulrich, John R. Clark  aNew York ;bHarcourt, Brace and World Inc. ,cc1961.  a112 p. :bill.  aEssential mathematicsxMathematics  aUlrich, James  aClark, John R.