Cita APA (7th ed.)

WILLIAMS, B. K. (2001). USING INFORMATION TECHNOLOGY: A PRACTICAL APPROACH TO COMPUTERS. LISHING CO.LTD.

Cita Chicago (17th ed.)

WILLIAMS, B K. USING INFORMATION TECHNOLOGY: A PRACTICAL APPROACH TO COMPUTERS. NEW DELHI: LISHING CO.LTD, 2001.

Cita MLA (9th ed.)

WILLIAMS, B K. USING INFORMATION TECHNOLOGY: A PRACTICAL APPROACH TO COMPUTERS. LISHING CO.LTD, 2001.