(1970). Ultraviolet stellar spectra and related ground-based observations: Held in Lunteren, the Netherlands, 24 - 27 June, 1969. Reidel.
Chicago-Zitierstil (17. Ausg.)Ultraviolet Stellar Spectra and Related Ground-based Observations: Held in Lunteren, the Netherlands, 24 - 27 June, 1969. Dordrecht: Reidel, 1970.
MLA-Zitierstil (9. Ausg.)Ultraviolet Stellar Spectra and Related Ground-based Observations: Held in Lunteren, the Netherlands, 24 - 27 June, 1969. Reidel, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.