For Upper Level Students and Adults:
Hurd, Dean, Silver, M., Bacher A.B., McLaughlin, C.W., Prentice Hall, Physical Science, Englewood Cliffs, NJ, C 1991.
Jones, Brian, The Practical Astronomer, Simon & Schuster, New York, NY C 1990.
Kingfisher, Larouse, Visual Encyclopedia of Science, Kingfisher Chambers Inc., New York, NY C 1994.
Levy, David H., Skywatching, The Nature Company, Time-Life Books, New York, NY C 1994.
Ross, Hugh, Creation and Time, NavPress, Colorado Springs, CO C 1994.
Ross, Hugh, Creator and the Cosmos, NavPress, Colorado Springs, Co, C 1994.
Space Discovery Course, U.S. Space Foundation, C 1996.
VanCleave, Janice, 201 Awesome, Magical, Bizarre, & Incredible Experiments, John Wiley & Sons, Inc., New York, NY C 1994.