Παραπομπή APA

Keynes, J. N. (1963). Scope and method of political economy (4.).

Παραπομπή Chicago Style

Keynes, John Neville. Scope and Method of Political Economy. 4. Augustus M. Kelly, New York, 1963.

Παραπομπή MLA

Keynes, John Neville. Scope and Method of Political Economy. 4. 1963.