1. California Crop and Livestock Reporting Service, “California Grape Acreage 1972 Revised,” California Crop and Livestock Reporting Service, Sacramento, Calif.
2. Grncarevic M., Amer. J. Enol. and Viticult. 14:230 (1963).
3. Possingham, J.V., Ann. Bot. 36:993 (1972).
4. Ponting, J.D., and McBean, D.M., Food Technol. 24:85 (1970).
5. Gentry, J.P., M.W. Miller, and L.L. Claypool, Food Technol. 19:121 (1965).