APA (7th ed.) Citation

Beil, D. H. (1983). The DIF file for users of VisiCalc and other software. Reston Pub. Co..

Chicago Style (17th ed.) Citation

Beil, Donald H. The DIF File for Users of VisiCalc and Other Software. Reston, Va.: Reston Pub. Co., 1983.

MLA (9th ed.) Citation

Beil, Donald H. The DIF File for Users of VisiCalc and Other Software. Reston Pub. Co., 1983.

Warning: These citations may not always be 100% accurate.