Kemp Reň, Foxon Tim, & United Nations University. Typology of Eco-Innovation.
Chicago-čujuhus (17. p.)Kemp Reň, Foxon Tim, juo United Nations University. Typology of Eco-Innovation.
MLA-čujuhus (9. p.)Kemp Reň, et al. Typology of Eco-Innovation.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.