TY  - BOOK
AU  - 
TI  - Mosaic of Jatropha gossypifolia in relation to the leaf-curl virus of tobacco in Puerto Rico
PY  - 1956///
KW  - Mosaic diseases
KW  - Local
KW  - Tobacco
KW  - Diseases and pests
KW  - Jatropha
KW  - Puerto Rico
N1  - Vita; Thesis (Ph.D.)--Univ. of Minnesota; Bibliography: leaf 46
ER  -