Gaya APA
The New Book Of Knowledge Volume 19: U-V. (1975).
New York:
Grolier Incorporated.
Gaya Chicago
The New Book Of Knowledge Volume 19: U-V.
.
New York:
Grolier Incorporated,
1975.
.
Gaya MLA
The New Book Of Knowledge Volume 19: U-V.
.
New York:
Grolier Incorporated,
1975.
.
Gaya Turabian
The New Book Of Knowledge Volume 19: U-V.
New York:
Grolier Incorporated,
1975.
.