An extension of the Dewey system of classification as applied to mining
By: by Carl A. Allen.
Series: Quarterly of the Colorado School of Mines, v. 7 no. 3; Quarterly of the Colorado School of Mines -- v. 7, no. 3.
Published: 1912
Place of publication: [Golden? Col
Language: eng
Number of pages: 108
Subjects: Classification -- Books -- Mining engineering; Classification, Decimal