Activity level and learning effectiveness
By: [by] Robert E. Stake  [and] Douglas D. Sjogren.
Contributors: Sjogren, Douglas D., joint author.; University of Nebraska (Lincoln campus)
Publisher: University of Nebraska
Published: 1964
Place of publication: [Lincoln]
Language: eng
Number of pages: 86
Subjects: Learning, Psychology of.
Notes: Bibliography:  leaves 83-86.
Cover title.