Παραπομπή APA

Galtung, J. (1967). Theory and methods of social research. Columbia University Press.

Παραπομπή Chicago Style

Galtung, Johan. Theory and Methods of Social Research. New York: Columbia University Press, 1967.

Παραπομπή MLA

Galtung, Johan. Theory and Methods of Social Research. Columbia University Press, 1967.