Παραπομπή APA

Kippenhahn, R. (1993). 100 billion suns: The birth, life, and death of the stars. Unwin paperbacks.

Παραπομπή Chicago Style

Kippenhahn, Rudolf. 100 Billion Suns: The Birth, Life, and Death of the Stars. London: Unwin paperbacks, 1993.

Παραπομπή MLA

Kippenhahn, Rudolf. 100 Billion Suns: The Birth, Life, and Death of the Stars. Unwin paperbacks, 1993.