TY - BOOK AU - Law, B. E. CN - I 19.76: CY - [Denver, CO : DA - 1990] ID - 241159 KW - Geochemical prospecting N1 - Distributed to some depository libraries in microfiche. N1 - Cover title. N1 - Chiefly tables. PB - U.S. Geological Survey, PP - [Denver, CO : PY - 1990] T1 - Vitrinite reflectance data from Cretaceous and Tertiary rocks, San Juan Basin, New Mexico and Colorado / TI - Vitrinite reflectance data from Cretaceous and Tertiary rocks, San Juan Basin, New Mexico and Colorado / VL - 90-659 ER -