. . "Hard Rock Miner's Handbook"@en . "0-9687006-1-6" . . . . . "53252849" . "314"^^ . "The Hard Rock Miner's Handbook is a reference book that deals with the underground hard rock mining industry. Written by Jack de la Vergne as a not for profit publication, the first edition was published in 2000 by McIntosh Engineering, a mining engineering consulting company."@en . . .