TY  - BOOK
AU  - Jellis, G. J.
AU  - Richardson, D. E.
TI  - The production of new potato varietics: : technological advances
U1  - 635.21 
PY  - 1987///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Papa
KW  - Rendimiento
KW  - Variedades
ER  -