(1985). Technological frontiers and foreign relations. National Academy Pr.
Chicago-čujuhus (17. p.)Technological Frontiers and Foreign Relations. Washington: National Academy Pr, 1985.
MLA-čujuhus (9. p.)Technological Frontiers and Foreign Relations. National Academy Pr, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.