Παραπομπή σε μορφή APA (7η εκδ.)

Hjorth, N. (1961). Eczematous allergy to balsams: Allied perfumes and flavouring agents, with special reference to balsam of Peru. Munksgaard.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hjorth, Niels. Eczematous Allergy to Balsams: Allied Perfumes and Flavouring Agents, with Special Reference to Balsam of Peru. Copenhagen: Munksgaard, 1961.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hjorth, Niels. Eczematous Allergy to Balsams: Allied Perfumes and Flavouring Agents, with Special Reference to Balsam of Peru. Munksgaard, 1961.