Biswal, P. C. (2005). Discrete mathematics and graph theory. Prentice Hall.
Dyfyniad Arddull ChicagoBiswal, Purna Chandra. Discrete Mathematics and Graph Theory. New Delhi: Prentice Hall, 2005.
Dyfyniad MLABiswal, Purna Chandra. Discrete Mathematics and Graph Theory. Prentice Hall, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.