APA
Zietz J., International Food Policy Research Institute and Kiel Institute of World Economics & Valdes A. (1988). Agriculture in the GATT. Washington, DC: IFPRI.
Chicago
Zietz Joachim, International Food Policy Research Institute and Kiel Institute of World Economics and Valdes Alberto. 1988. Agriculture in the GATT. Washington, DC: IFPRI.
Harvard
Zietz J., International Food Policy Research Institute and Kiel Institute of World Economics and Valdes A. (1988). Agriculture in the GATT. Washington, DC: IFPRI.
MLA
Zietz Joachim, International Food Policy Research Institute and Kiel Institute of World Economics and Valdes Alberto. Agriculture in the GATT. Washington, DC: IFPRI. 1988.