APA (7th ed.) Citation

Gutierrez, M., Nygărd, R., Hoeg, K., & Berre, T. Normalized undrained shear strength of clay shales.

Chicago Style (17th ed.) Citation

Gutierrez, Marte, Runar Nygărd, Kaare Hoeg, and Toralv Berre. Normalized Undrained Shear Strength of Clay Shales.

MLA (9th ed.) Citation

Gutierrez, Marte, et al. Normalized Undrained Shear Strength of Clay Shales.