APA-referens

(1982). World English: Teacher's book. Washington, DC.: United states Department of state.

Chicago-stil citat

World English: Teacher's Book. Washington, DC.: United states Department of state, 1982.

MLA-referens

World English: Teacher's Book. Washington, DC.: United states Department of state, 1982.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.