TY  - BOOK
AU  - Berge C Ed.
AU  -  Chvatal V Ed.
TI  - Topics on perfect graphs
T2  - Annals of Discrete Mathematics; 21
U1  - B44, M4 
PY  - 1984///
CY  - Amsterdam
PB  - North Holland        
N1  - Includes bibliography
ER  -