Petroleum And Its Products
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Explains how petroleum may have been produced in past geological eras. Shows the function of vegetable matter and diastrophic movements.
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Sources
- 16mm Filmography (legacy record) — title, year, creator, format, sound, description, catalog record
- Educational Film Guide 1946 — title, year, creator, length, format, sound, description, catalog record
Original permalink · Record added 2023-02-27 03:12:24