House flies /
Howard, L. O
House flies / by L. O. Howard - Washington : Department of Agriculture - 22 p. - EUA. Dept. of Agriculture Farmers' bull.; 679 .
203720
Mosca doméstica
House flies / by L. O. Howard - Washington : Department of Agriculture - 22 p. - EUA. Dept. of Agriculture Farmers' bull.; 679 .
203720
Mosca doméstica
