Howitt, Angus J., Western Washington Experiment Station Puyallup, WA, United States

• Journal of the Entomological Society of British Columbia Vol. 52 (1956): Proceedings of the Entomological Society of British Columbia - Scientific Notes
  Control of the Cabbage Maggot, Hylemya brassicae (Bouché), in Rhutabagas - 1954
  Abstract  PDF