ebrary, Inc, & Ruttan, V. W. (1994). Agriculture, environment, and health: Sustainable development in the 21st century. University of Minnesota Press.
Chicago-čujuhus (17. p.)ebrary, Inc, juo Vernon W. Ruttan. Agriculture, Environment, and Health: Sustainable Development in the 21st Century. Minneapolis: University of Minnesota Press, 1994.
MLA-čujuhus (9. p.)ebrary, Inc, juo Vernon W. Ruttan. Agriculture, Environment, and Health: Sustainable Development in the 21st Century. University of Minnesota Press, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.