Gaya APA
LENSKI, G, L, J, N, P. (1991).
Human societies an introduction to macrosociaology .
American:
Mcgraw-Hill.
Gaya MLA
LENSKI, Gerhard.,, LENSKI,, Jean.,, NOLAN,, Patrick.
"Human societies an introduction to macrosociaology".
American:
Mcgraw-Hill,
1991.
BUKU.