APA aipamena

Ober, S., Johnson, J. E., & Zimmerly, A. (2011). Gregg college keyboarding & document processing (11th ed.). McGraw-Hill.

Chicago Style aipamena

Ober, Scot, Jack E. Johnson, and Arlene Zimmerly. Gregg College Keyboarding & Document Processing. 11th ed. Boston: McGraw-Hill, 2011.

MLA aipamena

Ober, Scot, et al. Gregg College Keyboarding & Document Processing. 11th ed. McGraw-Hill, 2011.