APA (7e ed.) Bronvermelding

Não informado. (1926). Annals of the Observatory of Lund. Observatory of Lund.

Chicago (17e ed.) Bronvermelding

Não informado. Annals of the Observatory of Lund. Lund, Suecia: Observatory of Lund, 1926.

MLA (8e ed.) Bronvermelding

Não informado. Annals of the Observatory of Lund. Observatory of Lund, 1926.

Let op: Deze citaties zijn niet altijd 100% accuraat.