Gaya APA

Cornforth, D, H. (2005). Landslides in Practice Investigation, Analysis, and Remedial/Preventative Options in Soils . New Jersey: John Wiley & Sons.

Gaya MLA

Cornforth, Derek, H.. "Landslides in Practice Investigation, Analysis, and Remedial/Preventative Options in Soils". New Jersey: John Wiley & Sons, 2005. Text.