एपीए उद्धरण

Wren, J. (1972). The great battles of World War I. Hamlyn.

शिकागो स्टाइल उद्धरण

Wren, Jack. The Great Battles of World War I. London: Hamlyn, 1972.

एमएलए उद्धरण

Wren, Jack. The Great Battles of World War I. Hamlyn, 1972.