APA Citatie

Owen, L., & Unwin, T. (1997). Environmental managment: Readings and case studies.

Chicago Style citaat

Owen, Lewis, en Tim Unwin. Environmental Managment: Readings and Case Studies. U K, Blackwell Publishers, 1997.

MLA citatie

Owen, Lewis, en Tim Unwin. Environmental Managment: Readings and Case Studies. 1997.