APA (7th ed.) Citation

Walk, M., & Keller, B. Highly sound-insulating wooden floor system with granular filling.

Chicago Style (17th ed.) Citation

Walk, M., and B. Keller. Highly Sound-insulating Wooden Floor System with Granular Filling.

MLA (9th ed.) Citation

Walk, M., and B. Keller. Highly Sound-insulating Wooden Floor System with Granular Filling.

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