Bentonite
By: by Hugh S. Spence.
Contributors: Spence, Hugh Swaine, 1885-
Publisher: F.A. Acland, printer
Published: 1924
Place of publication: Ottawa
Language: eng
Number of pages: 35
Subjects: Bentonite.
Notes: In lower right corner of t.-p.: no.626.

Bibliography: p.32-35.