Berge, C., & Chvátal, V. (1984). Topics on perfect graphs. North-Holland.
Chicago-čujuhus (17. p.)Berge, C., juo V. Chvátal. Topics on Perfect Graphs. Amsterdam: North-Holland, 1984.
MLA-čujuhus (9. p.)Berge, C., juo V. Chvátal. Topics on Perfect Graphs. North-Holland, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.