Gaya APA
Hellman, P. (2004).
Shaping in the skyline : the world according to real estate visionary Kulien Studley / Peter Hellman .
New Jersey:
John Wiley \r Sons.
Gaya MLA
Hellman, Peter.
"Shaping in the skyline : the world according to real estate visionary Kulien Studley / Peter Hellman".
New Jersey:
John Wiley \r Sons,
2004.
Buku.