TY  - BOOK
AU  - Popham,W.James
AU  - Baker,Eva L.
TI  - Planning an instructional sequence
AV  - LB1031 P6.4
PY  - 1970///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Enseñanza programada
ER  -