Horris, S. (1960). The new economics. Dennis Dobson Ltd.
Cita Chicago (17th ed.)Horris, S. The New Economics. London: Dennis Dobson Ltd, 1960.
Cita MLA (9th ed.)Horris, S. The New Economics. Dennis Dobson Ltd, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.