1. Modern Drug Encyclopedia and Therapeutic Index15th Ed., A. J. Lewis. Yorke Medical Books, New York, NY 1979; 142
2. The United States Pharmacopeia17th Rev. U. S. Pharmacopeial Convention, Inc., Rockville, MD 1965; 101, 102
3. Determination of Carbachol in Aqueous Solution
4. The United States Pharmacopeia21st Rev. U. S. Pharmacopeial Convention, Inc., Rockville, MD 1985; 155, 156