Diana Hacker. (2007). A writer's reference. Boston, MA: Bedford/St. Martins.
Dyfyniad Arddull ChicagoDiana Hacker. A Writer's Reference. Boston, MA: Bedford/St. Martins, 2007.
Dyfyniad MLADiana Hacker. A Writer's Reference. Boston, MA: Bedford/St. Martins, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.