Παραπομπή σε μορφή APA (7η εκδ.)

Espitia-López, J. M., Ramírez-Ruiz, A. C., & Méndez-Zuluaga, J. R. (2007). Physical modelling in reduced dimensions of contention walls made of reinforced earth by Geo-textile. Universidad Pedagógica y Tecnológica de Colombia - UPTC.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Espitia-López, Jairo Martín, Ana Carolina Ramírez-Ruiz, και José Rodrigo Méndez-Zuluaga. Physical Modelling in Reduced Dimensions of Contention Walls Made of Reinforced Earth by Geo-textile. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

Espitia-López, Jairo Martín, et al. Physical Modelling in Reduced Dimensions of Contention Walls Made of Reinforced Earth by Geo-textile. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2007.