APA

N, H & F. (19). Guide to the epidemiology and prevention of endemic goiter. Bolzano: Athesiadruck.

Chicago

N, H and F. 19. Guide to the epidemiology and prevention of endemic goiter. Bolzano: Athesiadruck.

Harvard

N, H and F. (19). Guide to the epidemiology and prevention of endemic goiter. Bolzano: Athesiadruck.

MLA

N, H and F. Guide to the epidemiology and prevention of endemic goiter. Bolzano: Athesiadruck. 19.