Dutta,Ritwick. (2000). Environmental activists' handbook I (3rd.). SIDA.
Chicago-čujuhus (17. p.)Dutta,Ritwick. Environmental Activists' Handbook I. 3rd. Delhi: SIDA, 2000.
MLA-čujuhus (9. p.)Dutta,Ritwick. Environmental Activists' Handbook I. 3rd. SIDA, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.