Vousden, N. (1990). The economics of trade protection. Cambridge University Press.
Chicago-čujuhus (17. p.)Vousden, Neil. The Economics of Trade Protection. Cambridge ; New York: Cambridge University Press, 1990.
MLA-čujuhus (9. p.)Vousden, Neil. The Economics of Trade Protection. Cambridge University Press, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.