A clay for a lightweight aggregate
Subtitle: technical report
By: by José F. Cadilla [geologist, Mineralogy and Geology Section.
Contributors: Cadilla, José F.
Published: 1960
Place of publication: n.p.]
Language: eng
Number of pages: 64
Subjects: Clay -- Puerto Rico.; Shale -- Puerto Rico.; Aggregates (Building materials)
Notes: Bibliography: leaves 60-62.