Keller, Fred S. (1899-1996.)
Overview
| Works: | 1 works in 0 publications in 0 languages | |
|---|---|---|
Titles
PSI, the Keller plan handbook : = essays on a personalized system of instruction /
by:
Keller, Fred S. (1899-1996.); Sherman, J. Gilmour (1931-)
(Language materials, printed)
Subjects