Joshua Summit
发表
Joshua Summit,
Robert Sommer,
R. Sommer,
1998
.
Joshua Summit,
Matthew Tirrell,
Robert Sommer,
1994
.
Joshua Summit,
Robert O. Sommer,
R. Sommer,
2000
.
Joshua Summit,
Robert Sommer,
Amy Clements,
1993,
Landscape Journal.
Joshua Summit,
Robert Sommer,
R. Sommer,
1999
.