Gaya APA
Edward, M. (1985).
Soil Cutting and Tillage : Development in Agricultural Engineering 7 (Edisi Ketuju).
Amsterdam:
Elsever Schence.
Gaya MLA
Edward, Mckyes.
"Soil Cutting and Tillage : Development in Agricultural Engineering 7".
Edisi Ketuju
Amsterdam:
Elsever Schence,
1985.
Text.