Alford, D. V. (2000). Pest and disease management handbook. Blackwell Science.
Dyfyniad Arddull ChicagoAlford, David V. Pest and Disease Management Handbook. London: Blackwell Science, 2000.
Dyfyniad MLAAlford, David V. Pest and Disease Management Handbook. Blackwell Science, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.