Isokangas, P. (1987). Xylitol chewing gum in caries prevention: A longitudinal study on Finnish school children. [s.n.].
Citace podle Chicago (17th ed.)Isokangas, Pauli. Xylitol Chewing Gum in Caries Prevention: A Longitudinal Study on Finnish School Children. Turku: [s.n.], 1987.
Citace podle MLA (8th ed.)Isokangas, Pauli. Xylitol Chewing Gum in Caries Prevention: A Longitudinal Study on Finnish School Children. [s.n.], 1987.
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