Cita APA (7th ed.)

KARNEY, J. (1999). UPGRADE AND MAINTAIN YOUR PC,3RD ED. COMDEX.

Cita Chicago (17th ed.)

KARNEY, JAMES. UPGRADE AND MAINTAIN YOUR PC,3RD ED. NEW DELHI: COMDEX, 1999.

Cita MLA (9th ed.)

KARNEY, JAMES. UPGRADE AND MAINTAIN YOUR PC,3RD ED. COMDEX, 1999.