Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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