au.\*:("GRIESS PR")
Results 1 to 1 of 1
Selection :
ATLAS OF PENNSYLVANIA'S MINERAL RESOURCES. PART 2-B, ECONOMICS OF PENNSYLVANIA'S CLAY AND SHALE PRODUCTION.DEASY GF; GRIESS PR.1969; PENNSYLVANIA TOPOGR. GEOL. SURV., BULL., M; USA; 1969, NUM. 002 , P. 1 A 25Miscellaneous
