Appenzeller, I. (1982). Protostars, pre-main sequence objects: 5 Special types of stars. Numerical data and functional relationships in science and technology ; Gruppe 5, Bd. 1, Teilbd. b.
Chicago-Zitierstil (17. Ausg.)Appenzeller, Immo. "Protostars, Pre-main Sequence Objects: 5 Special Types of Stars." Numerical Data and Functional Relationships in Science and Technology ; Gruppe 5, Bd. 1, Teilbd. B 1982.
MLA-Zitierstil (9. Ausg.)Appenzeller, Immo. "Protostars, Pre-main Sequence Objects: 5 Special Types of Stars." Numerical Data and Functional Relationships in Science and Technology ; Gruppe 5, Bd. 1, Teilbd. B, 1982.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.