Flour-mill insects and their control /
Dean, G. A.
Flour-mill insects and their control / by G. A. Dean, R. T. Cotton and G. B. Wagner - Washington : Department of Agriculture - 40 p. - EUA. Dep. of Agri. Circular; 390 .
203873
Harina -- Molinos -- Plagas Control de plagas
Flour-mill insects and their control / by G. A. Dean, R. T. Cotton and G. B. Wagner - Washington : Department of Agriculture - 40 p. - EUA. Dep. of Agri. Circular; 390 .
203873
Harina -- Molinos -- Plagas Control de plagas