TY  - BOOK
AU  - Beukema,H.P.
AU  - Zaag,D.E.van der
TI  - Introduction to potato production / (Acc: 687)
SN  - 9022009637
U1  - 635.21 BEU 
PY  - 1990///
CY  - Wageningen
PB  - Pudoc
KW  - Potatoes
ER  -