00623nam a22002051 4500 1/11543 971029s1969 enk 001 0 eng d 11901 DLC GR-PeUP 512.2 AL Algebraic theory of machines, languages, and semigroups/ edited byMichael A. Arbib. New York: Academic press, 1969. xvi, 359p.; 22 cm. Index. Bibliography. Algebra. Semigroups. Mathematics. Arbib, Michael A. ed. INST UNIPILB MAIN 20040709 512.2 AL 00104585 00104585 LOAN 0 1