PSI, Keller's personalized system of instruction : an appraisal /

Bibliographic Details
Main Author:	Ryan, Bruce A.
Format:	Book
Language:	English
Published:	Washington : American Psychological Association, [1974]
Subjects:	Keller, Fred S. > (Fred Simmons), > 1899-1996. Individualized instruction.

Description
Item Description:	Running title: Personalized system of instruction.
Physical Description:	30 pages ; 23 cm.
Bibliography:	Bibliography: pages 23-30.