(1982). World English: Teacher's book. Washington, DC.: United states Department of state.
शिकागो स्टाइल उद्धरणWorld English: Teacher's Book. Washington, DC.: United states Department of state, 1982.
एमएलए उद्धरणWorld English: Teacher's Book. Washington, DC.: United states Department of state, 1982.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.