Gaya APA

Williams, B, K., Sawyer, S, C. (2011). Using information technology: a practical introduction to computers and communications (9). New York: McGraw-Hill.

Gaya MLA

Williams, Brian, K.., Sawyer, Stacey, C.. "Using information technology: a practical introduction to computers and communications". 9 New York: McGraw-Hill, 2011. Text.