00321nam a2200121Ia 4500008004100000041000800041082001400049100002000063245003600083260003900119300002900158365001200187240624s9999    xx            000 0 und d  aeng  a519.5 HAR  aHARDY MELISSA A  aREGRESSION WITH DUMMY VARIABLES  c1993aNew DelhibSage Publications  avi, : 90 : p. : cm. ; 21  cBPSb30