000			00349nam a2200157 4500
008			160616s1993 000 0
245			_aCategories for Types
100			_aCrole, Roy L.
260			_aCambridge
260			_bCUP
260			_c1993
300			_a335p
020			_a0 521 45701 7
942			_cBK _2BK14377
080			_a515.143 CRO
999			_c14377 _d14377