Gaya APA

Christady, H., H. (2007). Mekanika Tanah II edisi IV (Edisi IV). Yogyakarta: Gadja Mada University Press.

Gaya MLA

Hardiyatmo, Hary, Christady. "Mekanika Tanah II edisi IV". Edisi IV Yogyakarta: Gadja Mada University Press, 2007. Textbook.