Gaya APA
Brubaker, D, L., Swanson, C, P. (1969).
Social studies in a mass society .
Califormia:
Califormia: Internasional Textbook Company; 1969.
Gaya MLA
Brubaker, Dale, L., Swanson, Carl, P..
"Social studies in a mass society".
Califormia:
Califormia: Internasional Textbook Company; 1969,
1969.
Text.