APA-čujuhus (7. p.)
Clay, J. W. (2004). World agriculture and the environment: A commodity-by-commodity guide to impacts and practices. Island Press.
Chicago-čujuhus (17. p.)
Clay, Jason W. World Agriculture and the Environment: A Commodity-by-commodity Guide to Impacts and Practices. Washington, D.C.: Island Press, 2004.
MLA-čujuhus (9. p.)
Clay, Jason W. World Agriculture and the Environment: A Commodity-by-commodity Guide to Impacts and Practices. Island Press, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.