Mineral forecast 2000 A.D.
Series: Pennsylvania State College. Mineral Industries Experiment Station. Circular -- no. 39; Pennsylvania State College bulletin -- v. 46, no. 4
Publisher: School of Mineral Industries
Published: 1952
Place of publication: State College, Pa
Language: eng
Number of pages: 152
Subjects: Mines and mineral resources
Notes: "Completes a series of five companion circulars [no. 31, 33, 35, 37]"