Graham, Lyle J. Your IBM PC : a guide to the IBM PC(DOS 2.0) and XT / Lyle J. Graham, Tim Field - Berkeley, CA. : Osborne/ McGraw-Hill, 1984 - 593 p. : ill. ; 24 cm. ISBN: 0881341207 Subjects--Topical Terms: IBM Personal Computer--ProgrammingIBM Personal Computer XT--Programming