Gaya APA
BULLOCK, H, [.
(1975).
THE SOCIAL sciences :
(
2nd ed.)
.
New York:
Harcourt Brate Javanovich.
Gaya MLA
BULLOCK, Harrison, [ed.].
"THE SOCIAL sciences :".
2nd ed.
New York:
Harcourt Brate Javanovich,
1975.
Buku.