Cita APA (7th ed.)

Sampaio do Prado Leite, J. C., & Doorn, J. H. (2004). Perspective on software requirements. Kluwer Academic.

Cita Chicago (17th ed.)

Sampaio do Prado Leite, Julio Cesar, i Jorge Haracio Doorn. Perspective on Software Requirements. Boston, MA: Kluwer Academic, 2004.

Cita MLA (8th ed.)

Sampaio do Prado Leite, Julio Cesar, i Jorge Haracio Doorn. Perspective on Software Requirements. Kluwer Academic, 2004.