Citazione Stile APA (7a Edizione)

Duncan, J. M., Wright, S. G., & Brandon, T. L. (2014). Soil strength and slope stability (2a. ed.). John Wiley and Sons, Inc.

Citazione stile Chigago Style (17a edizione)

Duncan, J. Michael, Stephen G. Wright, e Thomas L. Brandon. Soil Strength and Slope Stability. 2a. ed. Hoboken: John Wiley and Sons, Inc, 2014.

Citatione MLA (9a ed.)

Duncan, J. Michael, et al. Soil Strength and Slope Stability. 2a. ed. John Wiley and Sons, Inc, 2014.