Clifford, J. (1978). Aspects of economic development 1760 to 1960. Longman.
Chicago-čujuhus (17. p.)Clifford, James. Aspects of Economic Development 1760 to 1960. London: Longman, 1978.
MLA-čujuhus (9. p.)Clifford, James. Aspects of Economic Development 1760 to 1960. Longman, 1978.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.