TY - BOOK AU - Held,Gilbert TI - IBM PCjr user's reference manual SN - 0810463733 (pbk.) U1 - 001.64 HEL PY - 1985/// CY - Hasbrouck Heights, N.J. PB - Hayden Book Co. KW - Personal Computer KW - MIS - Computer Science N1 - On t.p. the registered trademark symbol "R" is superscript following "IBM" in the title; Includes index ER -