1. A Colorimetric Method for the Determination of Oil Deposit on Citrus Leaves. Issue 6 (27th August 2014) Authors: McCall, G. L.; Kagy, J. F. Journal: Journal of economic entomology Issue: Volume 33:Issue 6(1940) Page Start: 905 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗