Gaya APA
O\'Brien, R, W. et al
(1969).
Reading in General Sociology
(
4th.Ed)
.
Boston:
Houghton Mifflin Company.
Gaya MLA
O\'Brien, Robert, W.. et al.
"Reading in General Sociology".
4th.Ed
Boston:
Houghton Mifflin Company,
1969.
.