TY  - BOOK
AU  - Fuglie,Keith O
AU  - Salazar,Leuis
AU  - Zhang,Liming
TI  - Economic impact of virus free sweet potato planting material in shandong province ,China
SN  - 920 9060 201 5
U1  - 635.2253 
PY  - 1999///
CY  - Peru
PB  - Internationaal potato centre
KW  - edible tubers
KW  - Horticulture
ER  -