<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>An example of a post office box address in the United States:
<address>
<pob>P.O. Box 1234</pob>
<city>Anytown</city>, <state>MA</state> <postcode>12345</postcode>
<country>USA</country>
</address>
</para>
