- Structure Determination by X-ray Crystallography. By Mark Ladd and Rex Palmer. Pp. xlii + 819. New York: Kluwer Academic/Plenum Publishers, 4th ed., 2003. Price (paperback) GBP 41. ISBN 0-306-47454-9. Helliwell, J.R. Acta Crystallogr. D Biol. Crystallogr. (2006)