Context

Context of Results of standard coal quality analysis for COALREAP drilling from January 1988 to February 1989, JK- series boreholes, Jherruck area of the Sonda coal field, Sindh Province, Pakistan, compiled by John R. SanFilipo ... [and others] ; prepared jointly by the Geological Survey of Pakistan and the U.S. Geological Survey, under the auspices of the U.S. Agency for International Development, (microform)
Processing Feedback ...