एपीए उद्धरण

Holden, A. (2000). Environment and tourism. Routledge.

शिकागो स्टाइल उद्धरण

Holden, Andrew. Environment and Tourism. London: Routledge, 2000.

एमएलए उद्धरण

Holden, Andrew. Environment and Tourism. Routledge, 2000.