Columbia subject headings:
Forest products industry--United States--History.
Forest products--Economic aspects--United States--History.
Lumber trade--United States--History.
Harvard subject headings:
Forest policy--United States.
Forest products industry--United States--History.
Forest products--Economic aspects--United States--History.
Lumber trade--United States--History.
Princeton subject headings:
Forest products industry--United States--History.
Forest products--Economic aspects--United States--History.
Lumber trade--United States--History.