- <xsl:text> author </xsl:text>
- <xsl:value-of select="marc:datafield[@tag='100']/marc:subfield[@code='a']"/>
- </pz:mergekey>
+ </pz:metadata>
+
+ <xsl:for-each select="marc:datafield[@tag='020']">
+ <pz:metadata type="isbn">
+ <xsl:value-of select="marc:subfield[@code='a']"/>
+ </pz:metadata>
+ </xsl:for-each>
+
+ <xsl:for-each select="marc:datafield[@tag='260']">
+ <pz:metadata type="date">
+ <xsl:value-of select="marc:subfield[@code='c']"/>
+ </pz:metadata>
+ </xsl:for-each>