(1999). Global aspects of the environment. Eward Elgar.
Chicago-čujuhus (17. p.)Global Aspects of the Environment. Cheltenham: Eward Elgar, 1999.
MLA-čujuhus (9. p.)Global Aspects of the Environment. Eward Elgar, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.