00444nam a2200157Ia 4500003000600000005001700006008004100023020001800064040002500082082001400107100001600121245004600137260004000183300002500223500003800248NORSU20240820081433.0240215s9999    xx            000 0 und d  a0-8223-0321-3  aNORSU-DumcNORSU-Dum  a808.4/F12  aWelsh, Paul 0aFact, Value and Perceptioncby Paul Welsh  bDuke University PressaDurhamc1975  ax, 174 pages; 24 cm.  aIncludes bibliographic reference.