Gaya APA

Williams, B, K., Sawyer, S, C. (2011). Using Information Tehnology (Ninth Edition. Introductory Version). America: McGraw-Hill.

Gaya MLA

Williams, Brian, K.., Sawyer, Stacey, C.. "Using Information Tehnology". Ninth Edition. Introductory Version America: McGraw-Hill, 2011. Text.