Iowa coal studies
By: by H.L. Olin in collaboration with Chas. Campbell [and others]
Contributors: Olin, H. L. (Hubert Leonard), 1880-1964
Series: Technical paper -- no. 3; Iowa Geological Survey technical paper -- no. 3.
Publisher: Published by the State of Iowa
Published: 1936
Place of publication: Des Moines
Language: eng
Number of pages: 80
Subjects: Coal
Notes: Issued by the Iowa Geological Survey.

Consists of foreword and 6 short papers by H.L. Olin and others.

Includes bibliographical references.