00558nam a2200181 a 450000500170000002000150001708200160003210000240004824500470007226000290011930000190014849000470016763000290021496400300024399700180027399900170029195200680030820251203092044.0  a0803937768  a300.72bDEV  aDeVellis, Robert F.  aScale developmentbtheory and applications  aNewbury ParkbSagec1991  a121 p.c23 cm.  aApplied social Research methods seriesd26  aScaling(Social Sciences)  bENGLISHcd300eBOOKfg_  a89127 LIBSS C  c62359d62359  00104070aPUbPUd1999-01-08g44.50l0o300.72 DEVp89127yBK