Artifact Details Title IBM 729, 7330 and 727 magnetic tape units : principles of operation Catalog Number 102774234 Type Document Date 1964-08 Publisher IBM Corp. Identifying Numbers Publication number A 22-6589-3 Extent 1 volume (various pagings) Category Manual Collection Title Gio Wiederhold collection Credit Gift of Gio Wiederhold Lot Number X6096.2011
