Oops. Except not the date, of course, that would go in <unitdate>:
<unittitle>Amra, v. 2, no. 14-24</unittitle>
As to Trent’s original question, we would just put the volume and issue information right in the unittitle:
<unittitle>Amra, v. 2, no. 14-24, 1961-1963</unittitle>
Unless it was a really long list, in which case we might put it in a <scopecontent> for that c0#.