Gaya APA
Ratti, John. (1974).
The New Book Of Knowledge Annual 1974 .
New York:
Grolier Incorporated.
Gaya Chicago
Ratti, John.
The New Book Of Knowledge Annual 1974.
New York:
Grolier Incorporated,
1974.
Text.
Gaya MLA
Ratti, John.
The New Book Of Knowledge Annual 1974.
New York:
Grolier Incorporated,
1974.
Text.
Gaya Turabian
Ratti, John.
The New Book Of Knowledge Annual 1974.
New York:
Grolier Incorporated,
1974.
Print.