एपीए उद्धरण

Hammond, A. (1998). Which world?: Scenarios for the 21st century. Washington: World Resources Institute.

शिकागो स्टाइल उद्धरण

Hammond, Allen. Which World?: Scenarios for the 21st Century. Washington: World Resources Institute, 1998.

एमएलए उद्धरण

Hammond, Allen. Which World?: Scenarios for the 21st Century. Washington: World Resources Institute, 1998.