00329nam a2200109Ia 4500008004000000082001700040100003100057245006100088260003500149300001300184650002200197210210b1982   xxu||||| |||| 00| 0 eng d  a001.424 GUPP  aGUPTA (P K) and MAN MOHAN.  aProblems in operations research (Methods and solutions).  aN DbSultan Chand & Sonsc1982  axiv, 861  aProblems in O R