APA (7e ed.) Bronvermelding

Cassel, D. (1986). Lotus 1-2-3 simplified for the IBM personal computer. Prentice Hall.

Chicago (17e ed.) Bronvermelding

Cassel, Don. Lotus 1-2-3 Simplified for the IBM Personal Computer. Englewood Cliffs, N. J: Prentice Hall, 1986.

MLA (9e ed.) Bronvermelding

Cassel, Don. Lotus 1-2-3 Simplified for the IBM Personal Computer. Prentice Hall, 1986.