TY - BOOK AU -  James L. Antonakos, Kenneth C. Mansfield, Jr. TI - Mastering A+ certification SN - 013099460X U1 - 621.3916076 A634 PY - 2002/// CY -  N.J PB - Prentice Hall KW - Electronic data processing personnel KW - Certification KW - Computer technicians KW - Study guides N1 - Includes index ER -