(1996). Long wave theory. Edward Elgar.
Chicago-čujuhus (17. p.)Long Wave Theory. Cheltenham: Edward Elgar, 1996.
MLA-čujuhus (9. p.)Long Wave Theory. Edward Elgar, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.