TY - BOOK AU - Petrich,M. TI - Categories of algebraic systems: vector and projective spaces, semigroups, rings and lattices T2 - Lecture notes in mathematics SN - 354007998X (paperback) U1 - 512.02 22 PY - 2009/// CY - [S.l.] PB - Springer KW - Algebra, Abstract KW - Categories (Mathematics) KW - Mathematics ER -