Gaya APA
Introduction to reference work. (1978).
New York:
McGrow Hill.
Gaya Chicago
Introduction to reference work.
.
New York:
McGrow Hill,
1978.
Buku.
Gaya MLA
Introduction to reference work.
.
New York:
McGrow Hill,
1978.
Buku.
Gaya Turabian
Introduction to reference work.
New York:
McGrow Hill,
1978.
Buku.