TY  - BOOK
AU  - Symposium on Combinatorial Mathematics and its Applications, Colorado State University, Fort Collins, Sept. 9-11, 1971
AU  - Srivastava, Jagdish N. ; ed.
TI  - Survey of combinatorial theory; proceedings
U1  - 511.6 
PY  - 1973///
CY  - Amsterdam
PB  - North-Holland
ER  -