Petrographic range of road-building materials
Series: Contributions from the Geological Department, Columbia University -- vol. XXV, no. 9; Contributions from the Geological Department of Columbia University -- vol. XXV, no. 9
Publisher: Columbia University [etc.
Published: 1913
Place of publication: New York
Language: eng
Subjects: Crushed Stone
Notes: Cover-title.

From the School of mines quarterly, vol. XXXV, no. 1, November, 1913.