<?xml version='1.0'?>

<reference anchor='RFC0042'>

<front>
<title>Message Data Types</title>
<author initials='E.' surname='Ancona' fullname='E. I. Ancona'>
<organization>Massachusetts Institute of Technology (MIT), Lincoln Laboratory</organization></author>
<date month='March' day='31' year='1970' /></front>

<seriesInfo name='RFC' value='42' />
</reference>
