Incoming Resources
- Rand McNally & company, Chicago, New York etc., 1945
- Ginn and Company, Boston, New York etc., c1936
- The Bruce publishing company, Milwaukee, Wis., New York etc., c1929
- Abelard-Schuman, London, New York etc., 1968
- Triangle Publications, New York etc.
- Macmillan Information etc., New York etc., 1923-
- McGraw-Hill Companies, Inc. etc, New York etc.