Gaya APA
Ratti, John. (1975).
The New Book Of Knowledge Annual 1975 .
New York:
Grolier Incorporated.
Gaya Chicago
Ratti, John.
The New Book Of Knowledge Annual 1975.
New York:
Grolier Incorporated,
1975.
Text.
Gaya MLA
Ratti, John.
The New Book Of Knowledge Annual 1975.
New York:
Grolier Incorporated,
1975.
Text.
Gaya Turabian
Ratti, John.
The New Book Of Knowledge Annual 1975.
New York:
Grolier Incorporated,
1975.
Print.