Front cover image for Coal resources of the world: an inquiry made upon the initiative of the executive committee of the XII international geological congress, Canada, 1913, with the assistance of geological surveys and mining geologists of different countries ; accompanied by an atlas of maps

Coal resources of the world: an inquiry made upon the initiative of the executive committee of the XII international geological congress, Canada, 1913, with the assistance of geological surveys and mining geologists of different countries ; accompanied by an atlas of maps

William Dowling, D. B. and Leach, W. W. ed McInnes
Print Book, English, 1913
Morang & Co., Toronto, 1913