Open AccessRank studies of coals in the Rocky Mountains and inner foothills belt, Canada
Author(s) -
P A Hacquebard,
J R Donaldson
Publication year - 1972
Language(s) - English
Resource type - Reports
DOI - 10.4095/105262
Subject(s) - foothills , rank (graph theory) , geography , ecology , forestry , physical geography , mathematics , biology , cartography , combinatorics