Citazione Stile APA (7a Edizione)

Townsend, C. (1985). PFS, software made easy. Osborne/McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Townsend, Carl. PFS, Software Made Easy. Berkeley, Calif: Osborne/McGraw-Hill, 1985.

Citatione MLA (9a ed.)

Townsend, Carl. PFS, Software Made Easy. Osborne/McGraw-Hill, 1985.