Cita APA (7th ed.)

HELLIWELL, J. F. (1968). Public policies and private: Investment. Clarendon Press.

Cita Chicago (17th ed.)

HELLIWELL, John F. Public Policies and Private: Investment. Oxford: Clarendon Press, 1968.

Cita MLA (9th ed.)

HELLIWELL, John F. Public Policies and Private: Investment. Clarendon Press, 1968.