Gaya APA
The New Book of Knowledge (UV volume 19). (1983).
USA:
Grolier Incorporated.
Gaya Chicago
The New Book of Knowledge (UV volume 19).
UV volume 19, 1983.
USA:
Grolier Incorporated,
1983.
Text.
Gaya MLA
The New Book of Knowledge (UV volume 19).
UV volume 19, 1983.
USA:
Grolier Incorporated,
1983.
Text.
Gaya Turabian
The New Book of Knowledge (UV volume 19).
USA:
Grolier Incorporated,
1983.
Print.