In 1981 a group of researchers from the Department of Geography—Thomas W. Hodler, Richard Brewer, Lawrence G. Brewer and Henry A. Raup—compiled a map illustrating the predominant types of vegetation ...

So this aspect naturally dominates in their joint work. The Distribution of Vegetation in the United States as related to Climatic Conditions. By B. E. Livingston E. Shreve. (Publication No. 284.) ...