APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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

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