Directory of Illinois sand and gravel producers
By: [by] W.L. Busch
Contributors: Illinois State Geological Survey
Series: Mineral economics brief -- [6]
Publisher: Illinois State Geological Survey
Published: 1963
Place of publication: Urbana
Language: eng
Number of pages: 20
Subjects: Sand; Gravel; Directories
Notes: Cover title.

"April 1963."

Replaced by the Directory published in 1967 as Mineral economics brief 18.