APA引文

Ulmschneider, P. (2006). Intelligent life in the universe: Principles and requirements behind its emergence (Second Edition.). Springer.

Chicago Style (17th ed.) Citation

Ulmschneider, Peter. Intelligent Life in the Universe: Principles and Requirements Behind Its Emergence. Second Edition. Berlin, Heidelberg: Springer, 2006.

MLA引文

Ulmschneider, Peter. Intelligent Life in the Universe: Principles and Requirements Behind Its Emergence. Second Edition. Springer, 2006.

警告：這些引文格式不一定是100％准確.