TY  - BOOK
AU  - Waterloo Conference on Combinatorics, University of Waterloo, 1968
AU  - Tutte, T.W., ed.
TI  - Recent progress in combinatorics - proceedings
SN  - 127051503
U1  - 511.606 
PY  - 1969///
CY  - New York
PB  - Academic Press
ER  -