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.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)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.
MLA -ийн эшлэл (9 дэх хэвлэлт)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.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.
