Clay products industry in Illinois in 1935-
Subtitle: preliminary report
By: by W.A. Newton and Walter H. Voskuil
Contributors: Voskuil, Walter Henry, 1892- joint author
Series: Illinois. State geological survey. Information circular -- no. 14; Information circular (Illinois State Geological Survey) -- no. 14.
Published: 1936
Place of publication: [Urbana]
Language: eng
Subjects: Clay industries
Notes: At head of title: State of Illinois ... Department of registration and education. Division of the State geological survey.

Mimeographed.