APA (7th ed.) Citation

Britannica Corporation. (1990). Human beings [motion pictures]: The digestive systems; the work of the heart. Encyclopedia Britannica Educational Corp.

Chicago Style (17th ed.) Citation

Britannica Corporation. Human Beings [motion Pictures]: The Digestive Systems; the Work of the Heart. Chicago: Encyclopedia Britannica Educational Corp, 1990.

MLA (9th ed.) Citation

Britannica Corporation. Human Beings [motion Pictures]: The Digestive Systems; the Work of the Heart. Encyclopedia Britannica Educational Corp, 1990.

Warning: These citations may not always be 100% accurate.