Gaya APA

Klingaman, W, K., Klingaman, N, P. (2013). The year without summer : 1816 and the volcano that darkened the world and changed history (cet. 1). New York: Martin\'s Press.

Gaya MLA

Klingaman, William, K., Klingaman, Nicholas, P. "The year without summer : 1816 and the volcano that darkened the world and changed history". cet. 1 New York: Martin\'s Press, 2013. Text.