APA ציטוט

Basalla, G. (2007). Civilized Life in the Universe: Scientists on Intelligent Extraterrestrials. OUP.

Chicago Edition Citation

Basalla, George. Civilized Life in the Universe: Scientists on Intelligent Extraterrestrials. OUP, 2007.

ציטוט MLA

Basalla, George. Civilized Life in the Universe: Scientists on Intelligent Extraterrestrials. OUP, 2007.