Gaya APA

Hardiyatmo, H, C. (1994,2019). Mekanika Tanah 2 (Ed. Keenam,-). Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Hardiyatmo, Hary, Christady. "Mekanika Tanah 2". Ed. Keenam,- Jakarta: Gramedia Pustaka Utama, 1994,2019. Text.