Urban, G. R. (1972). Can we survive our future?: A symposium. London: The Bodley Head.
Trích dẫn kiểu ChicagoUrban, G. R. Can We Survive Our Future?: A Symposium. London: The Bodley Head, 1972.
MLA引文Urban, G. R. Can We Survive Our Future?: A Symposium. London: The Bodley Head, 1972.
警告：這些引文格式不一定是100％准確.