REFERENCES
- Bridgman, Percy. The Nature of Some of Our Physical Concepts. New York: Philosophical Library, 1952.
- Bridgman, Percy. The Logic of Modern Physics. New York: Macmillan, 1960.
- Bruner, Jerome. Toward a Theory of Instruction. Cambridge: The Belknap Press, 1966.
- Chemical Bond Approach Project. Chemical Systems. New York: McGraw Hill, 1964.
- Elam, Stanley, ed. Education and the Structure of Knowledge. Chicago: Rand McNally, 1964.
- Ford, George, and Pugno, Lawrence, eds. The Structure of Knowledge and the Curriculum. Chicago: Rand McNally, 1964.
- Margenau, Henry. The Nature of Physical Reality. New York: McGraw Hill, 1950.
- Piaget, Jean, and Barbel, Inhelder. The Growth of Logical Thinking. New York: Basic Books, 1958.