TY - BOOK AU - Herring, J. R. CN - I 19.76: CY - [Denver, Colo.?] : CY - [Denver, Colo. : DA - 1994. ID - 196644 KW - Coalbed methane KW - Soil air N1 - Cover title. N1 - Distributed to depository libraries in microfiche. N1 - Shipping list no.: 95-0614-M. PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Open-File Reports Section, distributor], PP - [Denver, Colo.?] : PP - [Denver, Colo. : PY - 1994. T1 - Methane, carbon dioxide, oxygen, and nitrogen in soil gas overlying coal beds of the Upper Cretaceous Fruitland Formation in the San Juan Basin, La Plata County, southwestern Colorado TI - Methane, carbon dioxide, oxygen, and nitrogen in soil gas overlying coal beds of the Upper Cretaceous Fruitland Formation in the San Juan Basin, La Plata County, southwestern Colorado VL - 94-295 ER -