TY  - BOOK
AU  - Smith, Karl U
AU  - Smith, Margaret Foltz
TI  - Cybernetic principles of learning and educational design
U1  - 370.315006 21st
PY  - 1966///
CY  - New York
PB  - Holt, Rinehart and Winson
KW  - Cybernetic; Educational technology; Teaching-Aids and devices; Teaching machines
ER  -