APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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