Horticultural machinery

MLA

Hawker, M. F. J, and J. F Keenlyside. Horticultural Machinery. 2d ed. London: Longman, 1977.

APA

Hawker, M. F. J, & Keenlyside, J. F. (1977). Horticultural machinery. 2d ed. London: Longman.

Chicago

Hawker, M. F. J., and J. F Keenlyside. Horticultural Machinery. 2d ed. London: Longman, 1977.