Cover Image

Calipers : planning the systems approach to field testing educational products /

Bibliographic Details
Corporate Author: Southwest Educational Development Laboratory
Other Authors: Higginson, George M.
Format: Book
Language:English
Published: Austin, Tex. : Southwest Educational Development Laboratory, 1969.
Subjects:
Teaching > Aids and devices.
Education > Research.
Description
Item Description:Compiled under the direction of George M. Higginson.
"Tentative."
Physical Description:vii, 156 pages : illustrations ; 28 cm.
Bibliography:Bibliography: pages 131-146.