00369nam a22001217a 4500020001500000082002600015100001700041245008600058260004500144300001300189526003700202650000800239  a0070990069  a515.3bAYRcL-1, P-48  aAyres, Frank  aThoery and problems of differential equations in si metric units /cFrank, Ayres.  aNew Delhi :bMcGraw Hill Company,c1981.  a295 p. :  a0b0c0d515_300000000000000_AYR  aMCE