Legua-Pérez, G. S. (2017). Should male children be vaccinated against human papillomavirus? Universidad Nacional de Colombia.
Citazione stile Chigago Style (17a edizione)Legua-Pérez, Gerardo Sebastián. Should Male Children Be Vaccinated Against Human Papillomavirus? Universidad Nacional de Colombia, 2017.
Citatione MLA (9a ed.)Legua-Pérez, Gerardo Sebastián. Should Male Children Be Vaccinated Against Human Papillomavirus? Universidad Nacional de Colombia, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.