Perspectives in geology
Subtitle: invited papers
By: presented at a symposium in observance of the 75th anniversary of the Illinois State Geological Survey.
Contributors: Illinois State Geological Survey.
Series: Circular / Illinois State Geological Survey ;; 525; Circular (Illinois State Geological Survey) ;; 525.
Publisher: The Survey
Published: 1982
Place of publication: Champaign, IL (615 Peabody Dr., Champaign 61820)
Language: eng
Number of pages: 67
Subjects: Illinois State Geological Survey.; Geology -- Congresses.