TY  - BOOK
AU  - Sherman,J.Gilmour
AU  - Ruskin,Robert S.
TI  - The personalized system of instruction
T2  - The Instructional design library
SN  - 0877781176
AV  - LB1049 .S485
U1  - 378.1/7/943 
PY  - 1978///
CY  - Englewood Cliffs, N.J.
PB  - Educational Technology Publications
KW  - Independent study
KW  - Local
N1  - 920319; Bibliography: p. 51-53
ER  -