Cita APA (7th ed.)

Hagen, E. E. (1964). On the theory of social change: How economic growth begins. Tavistock.

Cita Chicago (17th ed.)

Hagen, Everett E. On the Theory of Social Change: How Economic Growth Begins. Londres: Tavistock, 1964.

Cita MLA (9th ed.)

Hagen, Everett E. On the Theory of Social Change: How Economic Growth Begins. Tavistock, 1964.