Cita APA

Fonseca Guzmán, V. 1., Retana Rodríguez, C. 1., & Valerio Hernández, A. 1. (2011). English rocks: ESP for the Central American School of Geology. [San José], C.R.

Citación estilo Chicago

Fonseca Guzmán, Vanessa 1987-, Catalina 1986- Retana Rodríguez, y Anayanse 1988- Valerio Hernández. English Rocks: ESP for the Central American School of Geology. [San José], C.R, 2011.

Cita MLA

Fonseca Guzmán, Vanessa 1987-, Catalina 1986- Retana Rodríguez, y Anayanse 1988- Valerio Hernández. English Rocks: ESP for the Central American School of Geology. [San José], C.R, 2011.