Citazione Stile APA (7a Edizione)

Hatfield, B. (1996). Developing PowerBuilder 5 applications (4th ed.). Sams Pub. ; Prentice Hall.

Citazione stile Chigago Style (17a edizione)

Hatfield, Bill. Developing PowerBuilder 5 Applications. 4th ed. Indianapolis, Ind. : New Delhi: Sams Pub. ; Prentice Hall, 1996.

Citatione MLA (8a ed.)

Hatfield, Bill. Developing PowerBuilder 5 Applications. 4th ed. Sams Pub. ; Prentice Hall, 1996.