We ship printed books within 1 business day; personal PDFs are available immediately. Mathematical Challenges from Theoretical/Computational Chemistry Committee on Mathematical Challenges from Computational Chemistry, National Research Council ISBN: 0-309-56064-0, 144 pages, x 11, (1995) This PDF is available from the National Academies Press at: Visit the National Academies Press online, the authoritative source for all books from the National Academy of Sciences, the National Academy of Engineering, the Institute of Medicine, and the National Research Council: • Download hundreds of free books in PDF • Read thousands of books online for free • Explore our innovative research tools.