Northern Miner Press, Toronto, 1981, 2nd printing, revised.  Trade sized soft cover, 222 pages including Index and Photo Credits.  Card covers show edge and cover wear, some creases, some losses to blue laminate covering; some reading creases.  Interior clean and unmarked; colour and black & white photos, black & white line drawings.  ‘This book is not intended as a textbook, but has been developed for the non-technical reader.  The mining and oil industries are complex, varied and highly technical businesses, and there is a general need on the part of many people for descriptions in lay terms that will provide some basic understanding and visual concepts of these operations.’ (from Foreword)