00342nam a2200121Ia 4500082001600000100002900016245005500045260003400100300001400134490003900148500000500187700002800192  a512bK29.CC  aKelley, G. M. and Others  aCoherence in categoriesbcEd. by Saunders Maclane  aBerlinbSpringer-Verlagc1972  avi, 235p.  aLecture notes in Mathematicsv 281  a  aMaclane, Saunders ; ed.