P. I., Programmed instruction
Subtitle: what it is and how it works
By: [by] Ohmer Milton [and] Leonard J. West
Contributors: West, Leonard, 1921- joint author
Publisher: Harcourt, Brace & World
Published: 1961
Place of publication: New York
Language: eng
Number of pages: 29
Subjects: Programmed instruction
Notes: Louise Bogan Collection