Não informado. (1969). AAS photo-bulletin. American Astronomical Society, Working Group on Photographic Materials.
Style de citation Chicago (17e éd.)Não informado. AAS Photo-bulletin. Rochester, NY: American Astronomical Society, Working Group on Photographic Materials, 1969.
Style de citation MLA (8e éd.)Não informado. AAS Photo-bulletin. American Astronomical Society, Working Group on Photographic Materials, 1969.
Attention : ces citations peuvent ne pas être correctes à 100%.