edited by Calvin W. Stillman
University of Chicago Press, 1955
Buku Teks
edited by Gerald Moore and Ulli Beier
Penguin Books, 1963
Buku Teks
edited Brian M. du Toit
Westview Press, 1978
Buku Teks
United Nations Centre for Human Settlements (Habitat] , 1990
Buku Teks
Campbell, W. K. H., author
W. Heffer & Sons , 1951
Buku Teks