Gabovich, R. D., & Ovrutskiy, G. D. (1977). Fluorine in stomatology and hygiene: Ftor v stomoatologii i gigiene. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Dental Health.
Παραπομπή σε μορφή Chicago (17η εκδ.)Gabovich, R D., και G D. Ovrutskiy. Fluorine in Stomatology and Hygiene: Ftor V Stomoatologii I Gigiene. Bethesda, MD (20402): Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Dental Health, 1977.
Παραπομπή σε μορφή MLA (9th εκδ.)Gabovich, R D., και G D. Ovrutskiy. Fluorine in Stomatology and Hygiene: Ftor V Stomoatologii I Gigiene. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health, National Institute of Dental Health, 1977.