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Biochemistry, Fifth Edition by Berg, Jeremy M.; Tymoczko, John L.; and Stryer, Lubert. New York: W. H. Freeman and Co. ; c2002 You can view for free, sections of this popular textbook, by entering a search term.
Basic Neurochemistry, 6th edition: Molecular, Cellular and Medical Aspects Edited by George J Siegel, MD, Editor-in-Chief, Bernard W Agranoff, MD, R Wayne Albers, PhD, Stephen K Fisher, PhD, and Michael D Uhler, PhD. Philadelphia: Lippincott-Raven; 1999. ISBN-10: 0-397-51820-X. You can view for free, sections of ths book, by entering a search term.