Hammack, R., & Wilfried Imrich, S. K. (2011). Handbook of product graphs (2nd ed.). CRC.
Dyfyniad Arddull ChicagoHammack, Richard, and Sandi Klavzar Wilfried Imrich. Handbook of Product Graphs. 2nd ed. Boca Raton: CRC, 2011.
Dyfyniad MLAHammack, Richard, and Sandi Klavzar Wilfried Imrich. Handbook of Product Graphs. 2nd ed. CRC, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.