00668cam 2200241 450 1763292http://id.bnportugal.gov.pt/bib/porbase/176329220030621125400.00-444-70368-364420PTBN0062005419901031d1990 k y0pory0103 baengNLCategories, allegoriesPeter J. FreydAmsterdamNorth-Holland1990XVII, 296 pNorth-Holland mathematical library39512.58medeng1381484515.14medeng304740FreydPeter J.779179ScedrovAndre0701418507PTBNRPC18B/FREcoopUCMAmq3076118bccoopUCMA0UCMA2-50