Koch, G. (1967). Effect of sodium fluoride in dentifrice and mouthwash on incidence of dental caries in schoolchildren. Gleerup.
Chicago-referens (17:e uppl.)Koch, Göran. Effect of Sodium Fluoride in Dentifrice and Mouthwash on Incidence of Dental Caries in Schoolchildren. Lund: Gleerup, 1967.
MLA-referens (8:e uppl.)Koch, Göran. Effect of Sodium Fluoride in Dentifrice and Mouthwash on Incidence of Dental Caries in Schoolchildren. Gleerup, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.