APA ציטוט

Irion, R. (2001). Galaxies: Island universes. Reader's Digest.

Chicago Style (17th ed.) Citation

Irion, Robert. Galaxies: Island Universes. Pleasantville: Reader's Digest, 2001.

ציטוט MLA

Irion, Robert. Galaxies: Island Universes. Reader's Digest, 2001.