APA citiranje

Vargas, A. G., & Kussmaul, S. (2015). Considerations about the first book of thermal springs in Costa Rica.

Citación estilo Chicago

Vargas, Asdrúbal G., y Siegfried Kussmaul. Considerations About the First Book of Thermal Springs in Costa Rica. 2015.

MLA citiranje

Vargas, Asdrúbal G., y Siegfried Kussmaul. Considerations About the First Book of Thermal Springs in Costa Rica. 2015.