APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Smith, Karl U., and Margaret F. Smith. Cybernetic Principles of Learning and Educational Design. New York [u.a.]: Holt, Rinehart and Winston, 1966.

MLA (9th ed.) Citation

Smith, Karl U., and Margaret F. Smith. Cybernetic Principles of Learning and Educational Design. Holt, Rinehart and Winston, 1966.