California Retail Survey. Reference Stacks HF 5429.4 .C3 C35x 2010
Encyclopedia of American Industries. Main Stacks HC102 .E53 2008
US Dept. of Agriculture Statistic Yearly Statitical Reports - By commodity, including state breakdowns.
US Dept. of Commerce Economic Indicators - including US international trade indicators (Some State-specific information).
Dept. of Commerce Foreign Trade Statistics - Click on the Data tab for a link to state breakdowns
Bureau of Labor Import/Export Price Indexes
Import/Export Price Indexes- US trends by industry
Bureau of Labor Statistics: California - State and Local employment trends, by industry
California Dept. of Finance Statistical Abstract - See table of contents for relevant sections. Printed editions available in the Main collection call number HA261 .C3
Rand California - Business and Economics section allows you to set parameters and build tables on employment and Gross State Product (GSP) data.