M F.J Hawker. (1985). Horticultural machinery. London: Longman.
Trích dẫn kiểu ChicagoM F.J Hawker. Horticultural Machinery. London: Longman, 1985.
MLA引文M F.J Hawker. Horticultural Machinery. London: Longman, 1985.
警告：這些引文格式不一定是100％准確.
APA引文