Collier, P., & Hoeffler, A. (2005). Democracy and Resource Rents. GPRG.
Chicago-čujuhus (17. p.)Collier, P., juo A. Hoeffler. Democracy and Resource Rents. GPRG, 2005.
MLA-čujuhus (9. p.)Collier, P., juo A. Hoeffler. Democracy and Resource Rents. GPRG, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.