एपीए उद्धरण

International telecommunication union. (1971). Tenth report. Geneva: International telecommunication union.

शिकागो स्टाइल उद्धरण

International telecommunication union. Tenth Report. Geneva: International telecommunication union, 1971.

एमएलए उद्धरण

International telecommunication union. Tenth Report. Geneva: International telecommunication union, 1971.