Cita APA (7th ed.)

Smith, K. U., & Smith, M. F. (1966). Cybernetic principles of learning and educational design. Holt.

Cita Chicago (17th ed.)

Smith, Karl Ulrich, i Margaret Foltz Smith. Cybernetic Principles of Learning and Educational Design. New York: Holt, 1966.

Cita MLA (9th ed.)

Smith, Karl Ulrich, i Margaret Foltz Smith. Cybernetic Principles of Learning and Educational Design. Holt, 1966.