Cita APA (7th ed.)

Sommerville, I., & Manfred, P. (1993). Software engineering--ESEC '93: 4th European Software Engineering Conference, Garmisch-Partenkirchen, Germany, September 13-17, 1993. Springer-Verlag.

Cita Chicago (17th ed.)

Sommerville, Ian, i Paul Manfred. Software Engineering--ESEC '93: 4th European Software Engineering Conference, Garmisch-Partenkirchen, Germany, September 13-17, 1993. Berlin: Springer-Verlag, 1993.

Cita MLA (9th ed.)

Sommerville, Ian, i Paul Manfred. Software Engineering--ESEC '93: 4th European Software Engineering Conference, Garmisch-Partenkirchen, Germany, September 13-17, 1993. Springer-Verlag, 1993.