Cita APA (7a ed.)
Sjoberg, G. (1960). The preindustrial city: Past and present. Free Press.
Cita Chicago Style (17a ed.)
Sjoberg, Gideon. The Preindustrial City: Past and Present. Illinois: Free Press, 1960.
Cita MLA (9a ed.)
Sjoberg, Gideon. The Preindustrial City: Past and Present. Free Press, 1960.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.