00750nam0-22002891i-450-990002558530403321000255853FED01000255853(Aleph)000255853FED0100025585320000920d1965----km-y0itay50------baENGCategories et StructuresCharles Ehresmann.ParisDunod1965.358 p.24 cmInsiemiStrutture algebriche516Ehresmann,Charles41014ITUNINARICAUNIMARCBK990002558530403321MXXV-A-18737160MASMASCatégories et Structures347863UNINAING01