TY  - BOOK
AU  - Wallis W.D.
AU  - J.C.George.
TI  - Introduction to Combinatorics
SN  - 9781439806227
AV  - QA164 .W35 2010 11301
PY  - 2011///
CY  - Boca Raton London.
PB  - CRC Press Taylor & Francis Group.
KW  - 1.Combinatorial  Analysis --Textbooks
N1  - includes bibliographical references and index
ER  -