APA (7th ed.) Citation

Coronet Film. (1993). Aquatic ecosystem: Freshwater. Coronet Film & Video.

Chicago Style (17th ed.) Citation

Coronet Film. Aquatic Ecosystem: Freshwater. [Placed of publication not identified]: Coronet Film & Video, 1993.

MLA (9th ed.) Citation

Coronet Film. Aquatic Ecosystem: Freshwater. Coronet Film & Video, 1993.

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