Máquinas Simples.

Copyright

Complete catalog record
MÁQUINAS SIMPLES. Encyclopaedia Britannica Films, Inc., in collaboration with H. Horton Sheldon, c1947. 1 reel, sd., b&w, 16mm. Portuguese version of "Simple Machines." © Encyclopaedia Britannica Films, Inc.; 17Mar47; MP1841.

Sources

  1. 16mm Filmography (legacy record) — title, year, length, format, color, sound, catalog record, copyright