Gaya APA
Sears List of Subject Heading. (1986).
New York:
Library of Congress.
Gaya Chicago
Sears List of Subject Heading.
13th.
New York:
Library of Congress,
1986.
Buku.
Gaya MLA
Sears List of Subject Heading.
13th.
New York:
Library of Congress,
1986.
Buku.
Gaya Turabian
Sears List of Subject Heading.
New York:
Library of Congress,
1986.
Buku.