Penna, A. N., & Rivers, J. S. (2013). Natural disasters in a global environment. Chichester, West Sussex, U.K.: Wiley-Blackwell.
Чикагска система за цитиранеPenna, Anthony N., и Jennifer S. Rivers. Natural Disasters in a Global Environment. Chichester, West Sussex, U.K.: Wiley-Blackwell, 2013.
MLA формат за цитиранеPenna, Anthony N., и Jennifer S. Rivers. Natural Disasters in a Global Environment. Chichester, West Sussex, U.K.: Wiley-Blackwell, 2013.
Внимание: Тези цитати може да не са 100% точни.