APA (7th ed.) Citation

Bortel, E., Witek, E., Bielewicz, D., & Knez, D. Bentonite modification by newly synthesized polymers in HDD (horizontal directional drilling).

Chicago Style (17th ed.) Citation

Bortel, Edgar, Ewa Witek, Danuta Bielewicz, and Darius Knez. Bentonite Modification by Newly Synthesized Polymers in HDD (horizontal Directional Drilling).

MLA (9th ed.) Citation

Bortel, Edgar, et al. Bentonite Modification by Newly Synthesized Polymers in HDD (horizontal Directional Drilling).