APA

Baltzan P., . (2013). Information systems. New York: McGraw-Hill/Irwin.

Chicago

Baltzan Paige, . 2013. Information systems. New York: McGraw-Hill/Irwin.

Harvard

Baltzan P., . (2013). Information systems. New York: McGraw-Hill/Irwin.

MLA

Baltzan Paige, . Information systems. New York: McGraw-Hill/Irwin. 2013.