AU  - Have der  D J Van
AU  - Hendriksen,A.J.T eds
AU  - O.Holbek (Coed)
TI  - Plant breeding Perpectives / 
U1  - 631.523 
PY  - 1979///
CY  - Wageningen : 
PB  - Centre for agricultural Publishing and Documentation , 
KW  - Development of Hybrids and new varieties
KW  - Plant
ER  -