Gaya APA

Haney, W, ., G., Field, D, ., R. (1991). Agriculture and natural resources : planning for educational priorities for the twenty-first century . Boulder: Westview Press.

Gaya MLA

Haney, Wafa, ., G., Field, Donald, ., R. "Agriculture and natural resources : planning for educational priorities for the twenty-first century". Boulder: Westview Press, 1991. Text.