Negative Numbers
Sign in to track this film in your collection or want list.
Copyright
Registered 3Jan78 · PA 1-809 (Jan-Jun 1978) Copyright holder: Guidance Associates (in notice on sound disc: (p) Guidance Associates, a subsidiary of Harcourt Brace Jovanovich, Inc.; in notice on filmstrip & teacher's guide: (c) Guidance Associates)
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T22:14:29Z