APA (7th ed.) Citation

Britannica Corporation. (1990). Geology [motion pictures]: Ground water, erosion: leveling the land, rivers: the work of running water. Encyclopedia Educational Corporation.

Chicago Style (17th ed.) Citation

Britannica Corporation. Geology [motion Pictures]: Ground Water, Erosion: Leveling the Land, Rivers: The Work of Running Water. Chicago: Encyclopedia Educational Corporation, 1990.

MLA (9th ed.) Citation

Britannica Corporation. Geology [motion Pictures]: Ground Water, Erosion: Leveling the Land, Rivers: The Work of Running Water. Encyclopedia Educational Corporation, 1990.