Peter D. Warwick

Tertiary and Cretaceous Coals in the Rocky Mountains Region

Lithofacies and palynostratigraphy of some Cretaceous and Paleocene rocks, Surghar and Salt Range coal fields, northern Pakistan

A preliminary review of coal exploration activities conducted by the government of Armenia and the coal resource potential of Armenia

Coal Systems Analysis

Coal systems analysis

Regional studies of the Potwar Plateau area, northern Pakistan

Lithofacies and Palynostratigraphy of Some Cretaceous and Paleocene Rocks, Surghar and Salt Range Coal Fields, Northern Pakistan (U.S. Geological)