The Earth's rocky crust.

Duration: 375

Year Published: 1931

Creator: Encyclopaedia Britannica Films Inc

Format: 16mm

Sound: sound

Description: L: Limited Access CP: Composite Positive AC: Acetate A: 400' 16/8/9.5mm 16mm Black & White Sound 325

Complete Record: Series: Physical science series Dewey number: 551 Audience level: jh-sh-c Guide 15c Format/cost: 16-sd-$50 Distributors / rental: Harvard Film Service

Metadata Source:Educational Film Guide 1946

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