APA (7e ed.) Bronvermelding
Ober, S., Johnson, J. E., & Zimmerly, A. (2005). College Keyboarding & Document Processing: Lessons 1-120 (9th ed.). McGraw-Hill / Irwin.
Chicago (17e ed.) Bronvermelding
Ober, Scot, Jack E. Johnson, en Arlene Zimmerly. College Keyboarding & Document Processing: Lessons 1-120. 9th ed. New York: McGraw-Hill / Irwin, 2005.
MLA (9e ed.) Bronvermelding
Ober, Scot, et al. College Keyboarding & Document Processing: Lessons 1-120. 9th ed. McGraw-Hill / Irwin, 2005.
Let op: Deze citaties zijn niet altijd 100% accuraat.