APA

Fookes P., Lee E. & Griffiths. J.S.Engineering geomorpholgy: theory and practice. USA: CRS Press, 2007: .

Chicago

Fookes P.G, Lee E.m and Griffiths. J.S.Engineering geomorpholgy: theory and practice. USA: CRS Press, 2007: .

Harvard

Fookes P., Lee E. and Griffiths. J.S.Engineering geomorpholgy: theory and practice. USA: CRS Press, 2007: .

MLA

Fookes P.G, Lee E.m and Griffiths. J.S.USA: CRS Press, 2007: . .