Gaya APA

Hardiyatmo,M.Eng.,D.E.A, D, C. (2006). Mekanika Tanah 1 Ed.4 (Ed.4,Cet.1, Jlh. Eksp = 2). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Hardiyatmo,M.Eng.,D.E.A, Dr.Ir.Hary, Christady. "Mekanika Tanah 1 Ed.4". Ed.4,Cet.1, Jlh. Eksp = 2 Yogyakarta: Gadjah Mada University Press, 2006. Text.