Gaya APA
Federal regulations, volume 3. (1981).
New Jersey:
Prentice Hall.
Gaya Chicago
Federal regulations, volume 3.
text.
New Jersey:
Prentice Hall,
1981.
Tesis.
Gaya MLA
Federal regulations, volume 3.
text.
New Jersey:
Prentice Hall,
1981.
Tesis.
Gaya Turabian
Federal regulations, volume 3.
New Jersey:
Prentice Hall,
1981.
Tesis.