TY  - BOOK
AU  - Hernandez,David E.,1928-
TI  - Writing behavioral objectives: a programmed exercise for beginners
T2  - Barnes & Noble international textbook series
AV  - LB1028.5 H46
PY  - 1971///
CY  - New York
PB  - Barnes & Noble
KW  - Enseñanza programada
ER  -