Cita APA

Hradecký, P., & Rapprich, V. (2007). Historical Tephra-stratigraphy of the Cosigüina Volcano (Western Nicaragua).

Chicago Style Citation

Hradecký, Petr, i Vladislav Rapprich. Historical Tephra-stratigraphy of the Cosigüina Volcano (Western Nicaragua). 2007.

Cita MLA

Hradecký, Petr, i Vladislav Rapprich. Historical Tephra-stratigraphy of the Cosigüina Volcano (Western Nicaragua). 2007.

Atenció: Aquestes cites poden no estar 100% correctes.