TY - BOOK ED - United Nations Development Programme (UNDP) ED - Ecuador. Ministry of Industries and Commerce TI - Survey of metallic and non - metallic minerals U1 - 662.73 PY - 1969/// CY - Quito PB - UNDP KW - Carbón KW - Minas KW - Ecuador N1 - 05026; This technical report deals both with the geological investigations and assessment of coal deposits in the operation area n.1 - Azuay and Loja. Work described in this report was initiated in May 1965 and terminated in March 1986 ER -