APA Style

McKellen, JS, O\'Leary, Timothy J. / O\'Leary, Linda I.. (2013). Computing Essensial 2013 : introductory . USA: McGraw Hill.

Chicago Style

McKellen, JS, O\'Leary, Timothy J. / O\'Leary, Linda I.. Computing Essensial 2013 : introductory. USA: McGraw Hill, 2013. Text.

MLA Style

McKellen, JS, O\'Leary, Timothy J. / O\'Leary, Linda I.. Computing Essensial 2013 : introductory. USA: McGraw Hill, 2013. Text.

Turabian Style

McKellen, JS, O\'Leary, Timothy J. / O\'Leary, Linda I.. Computing Essensial 2013 : introductory. USA: McGraw Hill, 2013. Print.