APA引文

Isokangas, P. (1987). Xylitol chewing gum in caries prevention: A longitudinal study on Finnish school children. [s.n.].

Chicago Style (17th ed.) Citation

Isokangas, Pauli. Xylitol Chewing Gum in Caries Prevention: A Longitudinal Study on Finnish School Children. Turku: [s.n.], 1987.

MLA引文

Isokangas, Pauli. Xylitol Chewing Gum in Caries Prevention: A Longitudinal Study on Finnish School Children. [s.n.], 1987.