The substrata-factor theory
Subtitle: substrata factor differences underlying reading ability in known-groups at the high school level
By: by Jack A. Holmes and Harry Singer.  Final report covering contracts: no. 538, SAE-8176, no. 538A, SAE-8660, U.S. Dept. of Health, Education, and Welfare, Office of Education.
Contributors: Singer, Harry.; University of California, Berkeley.
Publisher: University of California
Published: 1961
Place of publication: [Berkeley
Language: eng
Number of pages: 317
Subjects: Reading (Secondary)
Notes: Bibliography: leaves 314-317.