Industrial studies of Pennsylvania slate production
By: [by] C. W. Stickler, W. F. Mullen [and] A. Wayne Bitner.
Series: [Pennsylvania. State College] Mineral Industries Experiment Station. Bulletin 58; The Pennsylvania State College Bulletin,; v. 42, no. 27
Publisher: School of Mineral Industries
Published: 1951
Place of publication: State College Pa
Language: eng
Number of pages: 43
Subjects: Slate -- Pennsylvania.
Notes: Bibliography: p. 42.