APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.