TY - BOOK T1 - Petrographic and chemical properties of a lignite from Estevan, Saskatchewan DA - [1971] CY - [Ottawa] AU - Cameron, A. R. AU - Birmingham, T. F., VL - 71-8 CN - QE185 CN - QE185 PB - Dept. of Energy, Mines and Resources PP - [Ottawa] PY - [1971] ID - 57822 KW - Lignite TI - Petrographic and chemical properties of a lignite from Estevan, Saskatchewan ER -