The mosaic disease of tobacco /
Allard, H. A. 1880-1963.
The mosaic disease of tobacco / by H.A. Allard. - Washington, D.C. : U.S. Dept. of Agriculture, 1914. - 33 p., 7 p. of plates ; 23 cm. - Bulletin of the U.S. Department of Agriculture ; no. 40 .
Contribution from the Bureau of Plant Industry.
agr14000019
Tobacco mosaic disease.
S21 / .A7 vol. 40
1 / Ag84B no.40
The mosaic disease of tobacco / by H.A. Allard. - Washington, D.C. : U.S. Dept. of Agriculture, 1914. - 33 p., 7 p. of plates ; 23 cm. - Bulletin of the U.S. Department of Agriculture ; no. 40 .
Contribution from the Bureau of Plant Industry.
agr14000019
Tobacco mosaic disease.
S21 / .A7 vol. 40
1 / Ag84B no.40