Gaya APA

, ., Hardiyatmo, H, C. (2012). Mekanika Tanah 1 . Yogyakarta: Yogyakarta: Gajah Mada University prees; 2012.

Gaya MLA

, ., Hardiyatmo, Hary, Christady. "Mekanika Tanah 1". Yogyakarta: Yogyakarta: Gajah Mada University prees; 2012, 2012. Text.