SELECT AVG(T2.Price) FROM APPELLATIONS AS T1 JOIN WINE AS T2 ON T1.Appelation  =  T2.Appelation WHERE T1.County  =  "Sonoma"
What is the average price of wines produced in appelations in Sonoma County?
SELECT AVG ( T2.Price ) FROM APPELLATIONS AS T1 JOIN WINE AS T2 ON T1.Appelation = T2.Appelation WHERE T1.County = `` Sonoma ''
select avg ( t2 . price ) from appellations as t1 join wine as t2 on t1 . appelation = t2 . appelation where t1 . county = value
What is the average price of wines produced in appelations in Sonoma County ?