Dyfyniad APA

Berge, C., & Chvátal, V. (1984). Topics on perfect graphs. North-Holland.

Dyfyniad Arddull Chicago

Berge, C., and V. Chvátal. Topics on Perfect Graphs. Amsterdam: North-Holland, 1984.

Dyfyniad MLA

Berge, C., and V. Chvátal. Topics on Perfect Graphs. North-Holland, 1984.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.