एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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