Principles of insect control
Wardle, R.A., Buckle, P.
Principles of insect control by R.A. Wardle and P. Buckle - London 1923
Insect Control
595.7:632.9 / W 266 P
Principles of insect control by R.A. Wardle and P. Buckle - London 1923
Insect Control
595.7:632.9 / W 266 P