APA (7th ed.) Citation

Morningstar Films & Pyramid Film & Video. (1981). Mountain tops. Pyramid Films.

Chicago Style (17th ed.) Citation

Morningstar Films and Pyramid Film & Video. Mountain Tops. Santa Monica, Calif.: Pyramid Films, 1981.

MLA (9th ed.) Citation

Morningstar Films and Pyramid Film & Video. Mountain Tops. Pyramid Films, 1981.