APA (7th ed.) Zitazioa

Marshall, P. L. (2007). Ethical challenges in study design and informed consent for health research in resource-poor settings. World Health Organization.

Chicago Style (17th ed.) Zitazioa

Marshall, Patricia Loomis. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource-poor Settings. Geneva, Switzerland: World Health Organization, 2007.

MLA (9th ed.) Zitazioa

Marshall, Patricia Loomis. Ethical Challenges in Study Design and Informed Consent for Health Research in Resource-poor Settings. World Health Organization, 2007.