Gaya APA
KETTLER, D.
(1984).
Karl Mannheim
(
Cet.1 (Seri Key Sociologists))
.
Inggris:
Ellis Horwood Limited.
Gaya MLA
KETTLER, David.
"Karl Mannheim".
Cet.1 (Seri Key Sociologists)
Inggris:
Ellis Horwood Limited,
1984.
Book.