APA (7th ed.) Citation

Szeifert, T., Stahl, O., Wolf, B., & Zickgraf, F. (1996). HST and groundbased observations of the "Hubble-Sandage" variables in M 31 and M 33. Astronomy and astrophysics, 314, .

Chicago Style (17th ed.) Citation

Szeifert, Thomas, Otmar Stahl, Bernhard Wolf, and Franz-Josef Zickgraf. "HST and Groundbased Observations of the "Hubble-Sandage" Variables in M 31 and M 33." Astronomy and Astrophysics 314 (1996).

MLA (9th ed.) Citation

Szeifert, Thomas, et al. "HST and Groundbased Observations of the "Hubble-Sandage" Variables in M 31 and M 33." Astronomy and Astrophysics, vol. 314, 1996.