TY - BOOK AU - Tatsch,J.H TI - Coal deposits: origin, evolution, and present characteristics : an analysis of the present coal deposits in terms of the geometrical, mechanical, thermal, and chemical aspects of the Earth's behavior during the past 4.6 billion years SN - 0912890134 PY - 1980/// CY - Sudbury, Mass. PB - Tatsch Associates KW - Coal KW - Geology N1 - Bibliography : p. (456-535) ER -