Type

Number of items: 4.
  • Changes in soil invertebrate populations caused by some organophosphorus insecticides. (1967) Edwards, C. A., Thompson, A. R., Lofty, J. R.
  • Seasonal regulations in the honeybee colony. (1967) Free, J. B.
  • The progress of research at Rothamsted on aerial migrations of insects. (1967) Johnson, C. G.
  • The alleviation of world protein shortage. (1967) Pirie, Norman Wingate (Bill)