Gaya APA

K.Williams, B., Sawyer, S, C. (2011). Using Information Technology A Practical Introduction to Computers & Communication (9th ed.). New York: McGrawHill.

Gaya MLA

K.Williams, Brian., Sawyer, Stacey, C.. "Using Information Technology A Practical Introduction to Computers & Communication". 9th ed. New York: McGrawHill, 2011. Text.