APA Citatie

Barquero, R., Rojas, W., & Vargas, A. (2011). Summary of the seismic and volcanic activity in Costa Rica during 2011.

Chicago Style citaat

Barquero, Rafael, Wilfredo Rojas, en Alberto Vargas. Summary of the Seismic and Volcanic Activity in Costa Rica During 2011. 2011.

MLA citatie

Barquero, Rafael, Wilfredo Rojas, en Alberto Vargas. Summary of the Seismic and Volcanic Activity in Costa Rica During 2011. 2011.

Let op: Deze citaties zijn niet altijd 100% accuraat.