The Pennsylvania State College bulletin : mineral industries experiment station
School of Mineral Industries, The Pennsylvania State College
edited by Howard L. Hartman
College of Mineral Industries, the Pennsylvania State University 1961 The Pennsylvania State College bulletin : mineral industries experiment station no. 76 . Mining engineering series
所蔵館3館
in cooperation with the Pennsylvania Grade Crude Oil Association
Pennsylvania State University [195-]- The Pennsylvania State College bulletin : mineral industries experiment station no. 62, 64, 68
17th , 18th , 19th
所蔵館1館
by W.M. Myers
School of Mineral Industries, The Pennsylvania State College 1939 The Pennsylvania State College bulletin : mineral industries experiment station 17
