Gaya APA
Kell, James H.. (1982).
Manual of Traffic Signal Design .
:
Prentice Hall.
Gaya Chicago
Kell, James H..
Manual of Traffic Signal Design.
:
Prentice Hall,
1982.
Text.
Gaya MLA
Kell, James H..
Manual of Traffic Signal Design.
:
Prentice Hall,
1982.
Text.
Gaya Turabian
Kell, James H..
Manual of Traffic Signal Design.
:
Prentice Hall,
1982.
Print.