APA সাইটেশন

Hagen, E. E. (1962). On the theory of social change: How economic growth begins. Illinois: The Dorsey Press.

শিকাগো স্টাইলে সাইটেশন

Hagen, Everett E. On the Theory of Social Change: How Economic Growth Begins. Illinois: The Dorsey Press, 1962.

এমএলএ সাইটেশন

Hagen, Everett E. On the Theory of Social Change: How Economic Growth Begins. Illinois: The Dorsey Press, 1962.