
In AACR2, multiple place names in an X11 were separated by a comma and the word and. In RDA, a semi-colon is to be used instead: RDA App. E.1.2.4 (html)
Original: 111 2_ $a Anglo-Dutch Historical Conference $n (2nd : $d 1962 : $c Utrecht, Netherlands, and Amsterdam, Netherlands) Updated: 111 2_ $a Anglo-Dutch Historical Conference $n (2nd : $d 1962 : $c Utrecht, Netherlands; Amsterdam, Netherlands)
Change <comma><space>and<space> to <semi-colon> in X11 $c fields.
5.1 - 5.2 - 5.3 - 5.4 - 5.5 - 5.6 - 5.7