Successful solutions to everyday coal mining problems
Subtitle: operating, electrical, mechanical
By: pub. and copyrighted 1931 by Coal Age; Sydney A. HaLe, editor.
Publisher: McGraw-Hill Pub.
Published: 1931
Place of publication: New York, N.Y
Language: eng
Number of pages: 157
Subjects: Coal mines and mining.
Notes: "For the most part, the material in this book is from the 'Operating ideas' section of Coal age." - Foreword.