Gaya APA
George Gallup, Jr., Alec M. Gallup. (1986).
The Great American Success Story .
Homewood:
Dow Jones-Irwin.
Gaya Chicago
George Gallup, Jr., Alec M. Gallup.
The Great American Success Story.
Homewood:
Dow Jones-Irwin,
1986.
Text.
Gaya MLA
George Gallup, Jr., Alec M. Gallup.
The Great American Success Story.
Homewood:
Dow Jones-Irwin,
1986.
Text.
Gaya Turabian
George Gallup, Jr., Alec M. Gallup.
The Great American Success Story.
Homewood:
Dow Jones-Irwin,
1986.
Print.