Combinatorial mathematics / by Herbert John Ryser. Ryser, Herbert John. Combinations. QA165 .R95 512 RYC Includes bibliographic references and index. [Buffalo, N.Y.] : Mathematical Association of America ; [New York] : Distributed by Wiley, 1963. 1963. 1963 Text xiv, 154 p. ; eng The Carus mathematical monographs ; no. 14 Carus mathematical monographs ; no. 14.