Folley, K. W. (1969). Semigroups: Proceeding of a symposium on semigroups held at Wayne State University, Detroit, Michigan: June 27 - 29, 1968. Academic Press.
Style de citation Chicago (17e éd.)Folley, Karl W. Semigroups: Proceeding of a Symposium on Semigroups Held at Wayne State University, Detroit, Michigan: June 27 - 29, 1968. New York: Academic Press, 1969.
Style de citation MLA (9e éd.)Folley, Karl W. Semigroups: Proceeding of a Symposium on Semigroups Held at Wayne State University, Detroit, Michigan: June 27 - 29, 1968. Academic Press, 1969.
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