Παραπομπή APA

Ramírez, L., Alvarado, A., Pujol, R., & Brenes, L. G. (2008). Physical properties in the middle watershed of the river Reventado, Cartago, Costa Rica.

Παραπομπή Chicago Style

Ramírez, Laura, Alfredo Alvarado, Rosendo Pujol, και Luis Guillermo Brenes. Physical Properties in the Middle Watershed of the River Reventado, Cartago, Costa Rica. 2008.

Παραπομπή MLA

Ramírez, Laura, Alfredo Alvarado, Rosendo Pujol, και Luis Guillermo Brenes. Physical Properties in the Middle Watershed of the River Reventado, Cartago, Costa Rica. 2008.

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