The costs of information retrieval television
Subtitle: a case study in the cost-effectivness of educational media
By: [by] Maris M. Gailitis.
Series: The Ontario Institute for Studies in Education. Occasional papers,; no. 12; Occasional papers (Ontario Institute for Studies in Education) ;; 12.
Publisher: Ontario Institute for Studies in Education
Published: 1972
Place of publication: [Toronto]
Language: eng
Number of pages: 87
Subjects: Television in education.; Closed-circuit television.
Notes: Bibliography: p. 65.