Cita APA (7th ed.)

Wanlass, J. W. (1989). The electronic spreadsheet program: Lotus 1-2-3 version (5th ed.). BPI/IRWIN.

Cita Chicago (17th ed.)

Wanlass, John W. The Electronic Spreadsheet Program: Lotus 1-2-3 Version. 5th ed. U.S.A: BPI/IRWIN, 1989.

Cita MLA (9th ed.)

Wanlass, John W. The Electronic Spreadsheet Program: Lotus 1-2-3 Version. 5th ed. BPI/IRWIN, 1989.