Russel, J. (1954). World Population and World Food Supplies. George Allen and Unwin Ltd.
Citación estilo ChicagoRussel, John.E. World Population and World Food Supplies. London: George Allen and Unwin Ltd, 1954.
Cita MLARussel, John.E. World Population and World Food Supplies. George Allen and Unwin Ltd, 1954.
Precaución: Estas citas no son 100% exactas.