Gaya APA

Smith, H, P., Wilkes, L, H. (1990). Mesin Dan Peralatan Usaha Tani (6th). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Smith, Harris, Pearson., Wilkes, Lambert, Henry. "Mesin Dan Peralatan Usaha Tani". 6th Yogyakarta: Gadjah Mada University Press, 1990. Text.