APA引文

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

芝加哥风格引文

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

MLA引文

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

警告：这些引文格式不一定是100％准确.