APA (7th ed.) Citation

Krajči, L., Keller, B., & Walk, M. High-sound-damping wooden floor.

Chicago Style (17th ed.) Citation

Krajči, L., B. Keller, and M. Walk. High-sound-damping Wooden Floor.

MLA (9th ed.) Citation

Krajči, L., et al. High-sound-damping Wooden Floor.