Cita APA (7a ed.)

Hofmann, B. (2008). Ethical challenges with implementing prophylactic vaccines against human papilloma virus (HPV). Norwegian Knowledge Centre for the Health Services.

Cita Chicago Style (17a ed.)

Hofmann, Bjørn. Ethical Challenges with Implementing Prophylactic Vaccines Against Human Papilloma Virus (HPV). Oslo: Norwegian Knowledge Centre for the Health Services, 2008.

Cita MLA (9a ed.)

Hofmann, Bjørn. Ethical Challenges with Implementing Prophylactic Vaccines Against Human Papilloma Virus (HPV). Norwegian Knowledge Centre for the Health Services, 2008.