Suescún-Torres, J. H. (2007). Relations between the deposits means and the chemical trials in the Samacá Coal. Universidad Pedagógica y Tecnológica de Colombia - UPTC.
Παραπομπή σε μορφή Chicago (17η εκδ.)Suescún-Torres, Jaime Humberto. Relations Between the Deposits Means and the Chemical Trials in the Samacá Coal. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2007.
Παραπομπή σε μορφή MLA (9th εκδ.)Suescún-Torres, Jaime Humberto. Relations Between the Deposits Means and the Chemical Trials in the Samacá Coal. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2007.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.
