Gaya APA

Wunderman, R., Venzke, E. (2008). Bulletin of The Global Volcanism Network Vol.33 No.1 January 2008 . Washington DC: Global Volcanism Program.

Gaya MLA

Wunderman, Rick., Venzke, Edward. "Bulletin of The Global Volcanism Network Vol.33 No.1 January 2008". Washington DC: Global Volcanism Program, 2008. Text.