TY  - BOOK
AU  - Erickson, Martin J
TI  - Introduction to combinatorics
U1  - 511.6 E44I(2) 
PY  - 2013///
CY  - Hoboken
PB  - John Wiley
N1  - 1650 05/11/2014 IBS129 05/11/2014 Mathematics (NBHM)
ER  -