APA aipamena

Lieber, R. J. (2005). THe American era: Power and strategy for the 21st century. Cambridge university press.

Chicago Style aipamena

Lieber, Robert J. THe American Era: Power and Strategy for the 21st Century. Cambridge: Cambridge university press, 2005.

MLA aipamena

Lieber, Robert J. THe American Era: Power and Strategy for the 21st Century. Cambridge university press, 2005.