Gaya APA
Harkins, P, H, P. (2005).
Everybody wins : the story and lessons behind RE/MAX.-- .
New Jersey:
JohnWiley & Sons.
Gaya MLA
Harkins, Phil, Harkins,, Phil.
"Everybody wins : the story and lessons behind RE/MAX.--".
New Jersey:
JohnWiley & Sons,
2005.
Buku.