Hogan, Thom The Osborne/McGraw-Hill CP/M user guide / by Hogan, Thom - 3rd ed. - California Osborne / McGraw-Hill 1986 - viii, 328p. 21 cm. ISBN: 0070991154 Subjects--Topical Terms: Osborne 1 (Computer)--Programming.CP/M-80. Dewey Class. No.: 001.642 / HOG