Citação norma APA

Brenes, J., Leandro, G., & Fernández Rojas, W. (1993). Variation of the geomagnetic field in Costa Rica during the total solar eclipse of July 11, 1991.

Citação norma Chicago

Brenes, Jorge, German Leandro, y Walter Fernández Rojas. Variation of the Geomagnetic Field in Costa Rica During the Total Solar Eclipse of July 11, 1991. 1993.

Citação norma MLA

Brenes, Jorge, German Leandro, y Walter Fernández Rojas. Variation of the Geomagnetic Field in Costa Rica During the Total Solar Eclipse of July 11, 1991. 1993.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.