Citação norma APA

National Optical Astronomy Observatory (U.S.), Astronomical Society of the Pacific, & American Astronomical Society. (2001). Astronomy education review. National Optical Astronomy Observatory.

Citação norma Chicago

National Optical Astronomy Observatory (U.S.), Astronomical Society of the Pacific, and American Astronomical Society. Astronomy Education Review. Tucson, AZ: National Optical Astronomy Observatory, 2001.

Citação norma MLA

National Optical Astronomy Observatory (U.S.), et al. Astronomy Education Review. National Optical Astronomy Observatory, 2001.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.