John Firman, author
State University of New York Press, 2002
Buku Teks
edited by Iain Boyd Whyte
Routledge, Taylor & Francis Group, 2003
Buku Teks
edited by Saxe Commins and Robert N. Linscott
Modern Pocket Library, 1947
Buku Teks
Buber, Martin
Beacon Press, 1955
Buku Teks
Day, Christopher
Architectural Press , 2002
Buku Teks