BULLIS, L. H., & MIELKE, J. E. (1985). Strategic and critical materials. Westview Press.
Chicago-čujuhus (17. p.)BULLIS, L. Harold, juo James E. MIELKE. Strategic and Critical Materials. Boulder: Westview Press, 1985.
MLA-čujuhus (9. p.)BULLIS, L. Harold, juo James E. MIELKE. Strategic and Critical Materials. Westview Press, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.