TY  - BOOK
AU  - Center for Programed Instruction (New York)
TI  - Programs '62: a guide to Programed Instructional Materials Available to Educators by September 1962
AV  - LB 1028.7 C4
PY  - 1962///
CY  - Washington, D.C.
PB  - Center for Programed Instruction
KW  - Enseñanza programada -
KW  - Catálogos
ER  -