"Charbon Recherche." . . "Charbon Mines et extraction Nouvelle-Écosse." . . "The coal trade of British America with researches on the characters and practical values of American and foreign coals" . . . . . . . . . . . . . . . . . . . . "The coal trade of British America, with researches on the characters and practical values of American and foreign coals" . . . "The coal trade of British America, with researches on the characters and practical values of American and foreign coals"@en . . . . "The coal trade of British America : with researches on the characters and practical values of American and foreign coals"@en . . . . . . . . "The coal trade of British America with researches on the characters and practical values of American and foreign coals"@en . . "Charbon Mines et extraction Nouveau-Brunswick." . . . . "Coal trade." . .