APA

O'Leary T. J., O'Leary L. I., . (2004). Microsoft Office Excel 2003. Boston, MA: McGraw-Hill Technology Education.

Chicago

O'Leary Timothy J, O'Leary Linda I, . 2004. Microsoft Office Excel 2003. Boston, MA: McGraw-Hill Technology Education.

Harvard

O'Leary T. J., O'Leary L. I., . (2004). Microsoft Office Excel 2003. Boston, MA: McGraw-Hill Technology Education.

MLA

O'Leary Timothy J, O'Leary Linda I, . Microsoft Office Excel 2003. Boston, MA: McGraw-Hill Technology Education. 2004.