APA

Paarlberg R. L., International Food Policy Research Institute (Washington D. C., . (1999). External impact assessment of ofpri's 2020 vision food, agriculture and the environment initiative. Washington, D. C: International Food Policy Research Institute.

Chicago

Paarlberg Robert L, International Food Policy Research Institute (Washington D C.), . 1999. External impact assessment of ofpri's 2020 vision food, agriculture and the environment initiative. Washington, D. C: International Food Policy Research Institute.

Harvard

Paarlberg R. L., International Food Policy Research Institute (Washington D. C., . (1999). External impact assessment of ofpri's 2020 vision food, agriculture and the environment initiative. Washington, D. C: International Food Policy Research Institute.

MLA

Paarlberg Robert L, International Food Policy Research Institute (Washington D C.), . External impact assessment of ofpri's 2020 vision food, agriculture and the environment initiative. Washington, D. C: International Food Policy Research Institute. 1999.