Combinatorial enumeration / I.P. Goulden and D.M. Jackson ; with a foreword by Gian-Carlo Rota. Goulden, I. P. Jackson, D. M. Combinatorial enumeration problems. QA164.8 .G68 1983 511.62 19 GOC "A Wiley-Interscience publication." Includes bibliographical references and index. New York : Wiley-Interscience, c1983. c1983. 1983 Text xxiv, 569 p. : eng Wiley-Interscience series in discrete mathematics, 0277-2698