Incoming Resources
- Time-Life Books, Alexandria, Va., 1993
- Nature Co., Time-Life Books, Alexandria, Va., c1997
- Time-Life Books, Alexandria, Va., ©1998
- Time-Life Books, Alexandria, Va., c1993-c1994
- Time-Life Books, Alexandria, Va., 1994
- Time-Life Books, Alexandria, Va., 1998,1982
- Time-Life Books, Alexandria, Va., c1979