Head & Neck Cancer: Questions & Answers (2017). National Cancer Institute Member Services.
Citazione stile Chigago Style (17a edizione)Head & Neck Cancer: Questions & Answers (2017). National Cancer Institute Member Services.
Citatione MLA (9a ed.)Head & Neck Cancer: Questions & Answers (2017). National Cancer Institute Member Services.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.