APA (7th ed.) Zitazioa

Richards, E. P. (2002). The role of medical and public health services in sustainable development. Environmental Law Institute.

Chicago Style (17th ed.) Zitazioa

Richards, Edward P. The Role of Medical and Public Health Services in Sustainable Development. Washington, D.C.: Environmental Law Institute, 2002.

MLA (9th ed.) Zitazioa

Richards, Edward P. The Role of Medical and Public Health Services in Sustainable Development. Environmental Law Institute, 2002.