एपीए उद्धरण

(1930). U.S. global competitiveness: Optical fibers, technology and quipment. Washington: United States Trade Commission.

शिकागो स्टाइल उद्धरण

U.S. Global Competitiveness: Optical Fibers, Technology and Quipment. Washington: United States Trade Commission, 1930.

एमएलए उद्धरण

U.S. Global Competitiveness: Optical Fibers, Technology and Quipment. Washington: United States Trade Commission, 1930.