An edition of The coal resources of the world (1913)

The 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. Edited by William McInnes ... D.D. Dowling ... and W.W. Leach.

By International Geological Congress (12th 1913 Toronto, Ont.)