(1989). Planetary nebulae: Proceedings of the 131st symposium of the International Astronomical Union, held in Mexico City, Mexico, October 5 - 9, 1987. Kluwer.
Chicago-Zitierstil (17. Ausg.)Planetary Nebulae: Proceedings of the 131st Symposium of the International Astronomical Union, Held in Mexico City, Mexico, October 5 - 9, 1987. Dordrecht [u.a.]: Kluwer, 1989.
MLA-Zitierstil (9. Ausg.)Planetary Nebulae: Proceedings of the 131st Symposium of the International Astronomical Union, Held in Mexico City, Mexico, October 5 - 9, 1987. Kluwer, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.