Welford, R. e. (1996). Corporate environmental management. Universities Press.
Chicago-čujuhus (17. p.)Welford, Richard ed. Corporate Environmental Management. Hyderabad: Universities Press, 1996.
MLA-čujuhus (9. p.)Welford, Richard ed. Corporate Environmental Management. Universities Press, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.