APA (7th ed.) Citation

Beil, D. H. (1985). Symphony first!: An introduction to business software. Reston Computer Group Book.

Chicago Style (17th ed.) Citation

Beil, Donald H. Symphony First!: An Introduction to Business Software. Reston, Va: Reston Computer Group Book, 1985.

MLA (9th ed.) Citation

Beil, Donald H. Symphony First!: An Introduction to Business Software. Reston Computer Group Book, 1985.