TY  - BOOK
AU  - Borlaug, Norman Ernest.
TI  - A cereal breeder and ex-forester's evaluation of the progress and problems involved in breeding rust resistant forest trees
PY  - 0000///(s.a.)
CY  - (s.l.)
PB  - (s.e.)
KW  - Árboles
KW  - Mejoramiento
KW  - Resistencia a enfermedades
N1  - Fotocopia
ER  -