एपीए उद्धरण

Ayerst, D. (1971). Guardian, Biography of a Newspaper. Collins.

शिकागो स्टाइल उद्धरण

Ayerst, David. Guardian, Biography of a Newspaper. London: Collins, 1971.

एमएलए उद्धरण

Ayerst, David. Guardian, Biography of a Newspaper. Collins, 1971.