Cita APA (7th ed.)
Hagen, E. E. (1962). On the theory of social change: How economic growth begins : a study from the Center for International Studies, Massachusetts Institute of Technology. Dorsey Press.
Cita Chicago (17th ed.)
Hagen, Everett Einar. On the Theory of Social Change: How Economic Growth Begins : A Study from the Center for International Studies, Massachusetts Institute of Technology. Homewood, Illinois: Dorsey Press, 1962.
Cita MLA (9th ed.)
Hagen, Everett Einar. On the Theory of Social Change: How Economic Growth Begins : A Study from the Center for International Studies, Massachusetts Institute of Technology. Dorsey Press, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.