Gaya APA

Hardiyatmo, H, C. (2006). Penanganan Tanah Longsong & Erosi . Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Hardiyatmo, Hary, Christady. "Penanganan Tanah Longsong & Erosi". Yogyakarta: Gadjah Mada University Press, 2006. Text.