[MacDonald Collection. Heart function--unidentified works].

Duration: 260

Year Published: 1930

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 260 Encyclopaedia Britannica Films, Inc.

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