(1980). Variability in stars and galaxies: Proceedings of the Fifth European Regional Meeting in Astronomy ; held in Liège, Belgium, 28 july - 1 august 1980. Inst. d'Astrophysique.
Chicago-Zitierstil (17. Ausg.)Variability in Stars and Galaxies: Proceedings of the Fifth European Regional Meeting in Astronomy ; Held in Liège, Belgium, 28 July - 1 August 1980. Liège: Inst. d'Astrophysique, 1980.
MLA-Zitierstil (9. Ausg.)Variability in Stars and Galaxies: Proceedings of the Fifth European Regional Meeting in Astronomy ; Held in Liège, Belgium, 28 July - 1 August 1980. Inst. d'Astrophysique, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.