Reflections on recent diamond-drill exploration in the Illinois coal field
By: by Gilbert H. Cady. Use of international business machine technique in tabulating drilling data, by Margaret A. Parker
Contributors: Parker, Margaret Ann
Series: Illinois State Geological Survey. Circular -- 135; Circular (Illinois State Geological Survey) -- 135.
Published: 1947
Place of publication: Urbana
Language: eng
Number of pages: 95
Subjects: Borings; Coal mines and mining; Tabulating machines
Other titles: Use of international business machine technique in tabulating drilling data.
Notes: "Reprinted from the Transactions of the Illinois State Academy of Science, vol. 39, pp. 86-95, 1946."