TY - BOOK ID - 137497387 TI - Guidelines for sample collecting and analytical methods used in the U.S. Geological Survey for determining chemical composition of coal AU - Swanson, Vernon E. AU - Huffman, Claude PY - 1976 PB - [Washington, D.C.] : U.S. Dept. of the Interior, U.S. Geological Survey, DB - UniCat KW - Coal KW - Analysis. KW - Sampling. UR - https://www.unicat.be/uniCat?func=search&query=sysid:137497387 AB - ER -