:
                A Practical Guide.</a> Ellis Horwood Ltd.: West Sussex, England,
                1990. (electronic copy, 1998).
              </p>
            </td>
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              <p>
                11.
              </p>
            </td>
<td>
              <p>
                T. J. Parr, H. G. Dietz, and W. E. Cohen
              </p>
            </td>
<td>
              <p>
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