APA (7th ed.) Citation

Unsöld, A., & Baschek, B. (1991). The new cosmos (4th completely rev. ed.). Springer-Verlag.

Chicago Style (17th ed.) Citation

Unsöld, Albrecht, and B. Baschek. The New Cosmos. 4th completely rev. ed. Berlin ; New York: Springer-Verlag, 1991.

MLA (9th ed.) Citation

Unsöld, Albrecht, and B. Baschek. The New Cosmos. 4th completely rev. ed. Springer-Verlag, 1991.