.Norman, R. J. (1996). Object-oriented systems analysis and design. Prentice Hall.
Citazione stile Chigago Style (17a edizione).Norman, Ronald J. Object-oriented Systems Analysis and Design. Upper Saddle River, NJ: Prentice Hall, 1996.
Citatione MLA (9a ed.).Norman, Ronald J. Object-oriented Systems Analysis and Design. Prentice Hall, 1996.