Cita APA

Lean,Geoffrey. (1978). Rich world, poor world. George Allen & Unwin.

Chicago Edition Citation

Lean,Geoffrey. Rich World, Poor World. London: George Allen & Unwin, 1978.

Cita MLA

Lean,Geoffrey. Rich World, Poor World. George Allen & Unwin, 1978.

Atenció: Aquestes cites poden no estar 100% correctes.