APA (7th ed.) Citation

Kalmar, B., Ruby, H., Marx, G., Marx, H., Marx, C., & Marx, Z. (2023). Duck soup. Universal Pictures Home Entertainment.

Chicago Style (17th ed.) Citation

Kalmar, Bert, Harry Ruby, Groucho Marx, Harpo Marx, Chico Marx, and Zeppo Marx. Duck Soup. Universal City, CA: Universal Pictures Home Entertainment, 2023.

MLA (8th ed.) Citation

Kalmar, Bert, et al. Duck Soup. Universal Pictures Home Entertainment, 2023.

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