Fonseca-Benítez, F. A. (2006). The GRP (Ground Penetrating Radar) in different studies of the subsoil. Universidad Pedagógica y Tecnológica de Colombia - UPTC.
Čikaški stil citiranja (17. izdanje)Fonseca-Benítez, Fredy Alexander. The GRP (Ground Penetrating Radar) in Different Studies of the Subsoil. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2006.
MLA način citiranja (9. izdanje)Fonseca-Benítez, Fredy Alexander. The GRP (Ground Penetrating Radar) in Different Studies of the Subsoil. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2006.
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