Incoming Resources
- Twayne Publishers, Boston, Mass., 1966, c1961
- Dorling Kindersley, Distributed by Houghton Mifflin Co., London, New York, Boston, Mass., 1992
- Little, Brown & Co., Boston, Mass., 2000
- Millbrook Press, Distributed by Houghton Mifflin Co., Brookfield, Conn., Boston, Mass., c1991