00504nam a2200145 a 4500 ASINB000X3HDQI 20140829165102.0 140828s1994 xxu eng d Unknown. Microsoft ms-dos upgrade operating system user's guide / Unknown. [S.l.] : Microsoft Corp, 1994. 1 v. (unpaged) User's guide to MS-DOS Upgrade 6.22 - 1994. Amazon.com http://www.amazon.com/exec/obidos/ASIN/B000X3HDQI/chopaconline-20 9301 9301 0 0 0 0 QUESTCL QUESTCL 2014-08-29 450.00 0 MIC 18999 2014-08-29 00:00:00 2014-08-29 BK 0 0 0 0 SLMS SLMS 2014-08-29 655.00 0 MIC 19000 2014-08-29 00:00:00 BK