एपीए उद्धरण

(1981). 1981 U.S. industrial outlook for 200 industries with projections for 1985. Washington.

शिकागो स्टाइल उद्धरण

1981 U.S. Industrial Outlook for 200 Industries With Projections for 1985. Washington, 1981.

एमएलए उद्धरण

1981 U.S. Industrial Outlook for 200 Industries With Projections for 1985. Washington, 1981.