Cita APA (7th ed.)
Sjoberg, G. (1960). The preindustrial city: Past and present. Free Press.
Cita Chicago (17th ed.)
Sjoberg, Gideon. The Preindustrial City: Past and Present. Illinois: Free Press, 1960.
Cita MLA (9th ed.)
Sjoberg, Gideon. The Preindustrial City: Past and Present. Free Press, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.