TY - BOOK AU - Krohn, M. Dennis. CN - I 19.76: CY - Reston, VA : CY - [Denver, Colo. : DA - 1993] ID - 184559 KW - Ammonium compounds. KW - Infrared spectroscopy. KW - Geysers KW - Geysers N1 - Distributed to depository libraries in microfiche. N1 - Shipping list no.: 94-0125-M. PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Books and Open-File Reports Section, distributor, PP - Reston, VA : PP - [Denver, Colo. : PY - 1993] T1 - Evaluation of near-infrared spectra for detecting ammonium minerals at Shoshone Geyser Basin, Yellowstone National Park, Wyoming[microform] / TI - Evaluation of near-infrared spectra for detecting ammonium minerals at Shoshone Geyser Basin, Yellowstone National Park, Wyoming[microform] / VL - 93-293 ER -