Não informado. (1969). Bulletin of the American Astronomical Society. American Institute of Physics.
Chicago-Zitierstil (17. Ausg.)Não informado. Bulletin of the American Astronomical Society. New York: American Institute of Physics, 1969.
MLA-Zitierstil (8. Ausg.)Não informado. Bulletin of the American Astronomical Society. American Institute of Physics, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.