APA (7e ed.) Bronvermelding

Blanc, I., & Vento, C. (1992). Learning Lotus 1-2-3 for IBM & compatibles: For versions 2.3, 2.4 & 3.1 : step-by-step concepts, exercises, keystrokes & applications. Dictation Disc Company.

Chicago (17e ed.) Bronvermelding

Blanc, Iris, en Cathy Vento. Learning Lotus 1-2-3 for IBM & Compatibles: For Versions 2.3, 2.4 & 3.1 : Step-by-step Concepts, Exercises, Keystrokes & Applications. New York: Dictation Disc Company, 1992.

MLA (9e ed.) Bronvermelding

Blanc, Iris, en Cathy Vento. Learning Lotus 1-2-3 for IBM & Compatibles: For Versions 2.3, 2.4 & 3.1 : Step-by-step Concepts, Exercises, Keystrokes & Applications. Dictation Disc Company, 1992.