एपीए उद्धरण

Hitchcock, A. (1975). Sinister spies. Heinemann Educational.

शिकागो स्टाइल उद्धरण

Hitchcock, Alfred. Sinister Spies. London: Heinemann Educational, 1975.

एमएलए उद्धरण

Hitchcock, Alfred. Sinister Spies. Heinemann Educational, 1975.