Dyfyniad APA

Lewis, D. S., & Slater, W. (2007). The annual register: World events 2006. ProQuest.

Dyfyniad Arddull Chicago

Lewis, D. S., and Wendy Slater. The Annual Register: World Events 2006. Bethesda, Maryland: ProQuest, 2007.

Dyfyniad MLA

Lewis, D. S., and Wendy Slater. The Annual Register: World Events 2006. ProQuest, 2007.

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