Huggins, H. A. (1989). It's all in your head (diseases caused by Silver-Mercury Fillings). s.n.
Citazione stile Chigago Style (17a edizione)Huggins, Hal A. It's All in Your Head (diseases Caused by Silver-Mercury Fillings). s.n, 1989.
Citatione MLA (9a ed.)Huggins, Hal A. It's All in Your Head (diseases Caused by Silver-Mercury Fillings). s.n, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.