Cancer Support Groups: Questions & Answers (2019). National Cancer Institute Member Services.
Citazione stile Chigago Style (17a edizione)Cancer Support Groups: Questions & Answers (2019). National Cancer Institute Member Services.
Citatione MLA (9a ed.)Cancer Support Groups: Questions & Answers (2019). National Cancer Institute Member Services.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.