Krugman, P. R. (1988). International economics: Theory and policy. Scott, Foresman.
Chicago-čujuhus (17. p.)Krugman, Paul R. International Economics: Theory and Policy. Glenview: Scott, Foresman, 1988.
MLA-čujuhus (9. p.)Krugman, Paul R. International Economics: Theory and Policy. Scott, Foresman, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.