APA (7e ed.) Bronvermelding

Não informado. (1969). AAS photo-bulletin. American Astronomical Society, Working Group on Photographic Materials.

Chicago (17e ed.) Bronvermelding

Não informado. AAS Photo-bulletin. Rochester, NY: American Astronomical Society, Working Group on Photographic Materials, 1969.

MLA (8e ed.) Bronvermelding

Não informado. AAS Photo-bulletin. American Astronomical Society, Working Group on Photographic Materials, 1969.

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