Cita APA (7th ed.)
Ober, S., Johnson, J. E., Rice, A., & Hanson, R. N. (2003). College Keyboarding & Document Processing: Lessons 1-120 (9th ed.). McGraw-Hill / Irwin.
Cita Chicago (17th ed.)
Ober, Scot, Jack E. Johnson, Arlene Rice, i Robert N. Hanson. College Keyboarding & Document Processing: Lessons 1-120. 9th ed. New York: McGraw-Hill / Irwin, 2003.
Cita MLA (9th ed.)
Ober, Scot, et al. College Keyboarding & Document Processing: Lessons 1-120. 9th ed. McGraw-Hill / Irwin, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.