APA-viite (7. p.)

HAWRYSZKIEWYCZ, I. (1994). Introduction to systems analysis and design.-ed.3. Prentice Hall.

Chicago-viite (17. p.)

HAWRYSZKIEWYCZ, I.T. Introduction to Systems Analysis and Design.-ed.3. Sydney: Prentice Hall, 1994.

MLA-viite (9. p.)

HAWRYSZKIEWYCZ, I.T. Introduction to Systems Analysis and Design.-ed.3. Prentice Hall, 1994.