APA način citiranja

Rapprich, V., Hernández, W., & Erban, V. (2006). Geology of the Metapán volcanic field NW El Salvador.

Čikaški stil citiranja

Rapprich, Vladislav, Walter Hernández, i Vojtěch Erban. Geology of the Metapán Volcanic Field NW El Salvador. 2006.

MLA način citiranja

Rapprich, Vladislav, Walter Hernández, i Vojtěch Erban. Geology of the Metapán Volcanic Field NW El Salvador. 2006.