Gaya APA
Levin, W, C. (1984).
Sociological Ideas Concepts and Aplications (ed. 3).
Belmont - California:
Wadsworth Publishing Company.
Gaya MLA
Levin, William, C..
"Sociological Ideas Concepts and Aplications".
ed. 3
Belmont - California:
Wadsworth Publishing Company,
1984.
Buku.