TY  - BOOK
AU  - Roberts, L. M.
TI  - Races of maize in Colombia
T2  - N.A.S. Publication
U1  - 633.15 
PY  - 1957///
CY  - Washington
PB  - National Academy of Sciences
KW  - Maíz
KW  - Colombia
KW  - Variedades
ER  -