00433nam a2200157Ia 4500 5828 20261006003908.0 120911s9999 xx 000 0 und d 0201567989 005.446 DUN Duncan,ray 6011 Extending dos:a programmer's guide to protected-mode dos 2nd ed. Addison-wesley Operating system(computeRed Sport) 6873 5828 5828 0 0 0 0 NU NU 2012-09-11 0 005.446 DUN 5733 2012-09-11 00:00:00 2012-09-11 OS