Weisman, A. (2013). Countdown: Our Last, Best Hope for a future on earth? Little Brown.
Čikaški stil citiranja (17. izdanje)Weisman, Alan. Countdown: Our Last, Best Hope for a Future on Earth? London: Little Brown, 2013.
MLA način citiranja (9. izdanje)Weisman, Alan. Countdown: Our Last, Best Hope for a Future on Earth? Little Brown, 2013.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.