Autor:	Black, Bernard, Lakeman, Enid, Faull, David, Tinley, Gervais, Chisholm, Michael, Steed, Michael, Rost, Peter, Clarke, Peter, Burnett, Alan, Cook, Douglas, Johnston, R. J., Taylor, Peter, Bogdanor, Vernon
Zdroj:	The Geographical Journal, 1985 Nov 01. 151(3), 344-346.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/633015 Zobrazit plný text záznamu