APA-viite

World book. (1996). World book encyclopedia(vol.22.): :research guide. World book international.

Chicago-tyylinen lähdeviittaus

World book. World Book Encyclopedia(vol.22.): :research Guide. London: World book international, 1996.

MLA-viite

World book. World Book Encyclopedia(vol.22.): :research Guide. World book international, 1996.