Contributions

  • Fuchs, Estelle, joint author. - Contributor
  • Macgregor, Gordon, 1902- - Contributor
  • United States. Office of Education. - Contributor

Publication

1970 - Pennsylvania State University, University Park, Pennsylvania

Language

English

Word Count

39,500 words, Guess

Page Count

158 pages

Identifiers

Classifications

  • DDC370/.973
  • LCCE97 .A9

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