Verwysings
- CHACHOLIADES , M. 1981 . Principles of International Economics. McGraw-Hill, New York
- HARWOOD , J L . 1989 . Liberalizing World Trade in Wheat. Agricultural Outlook. July:28-32
- HARWOOD , J L and BAILEY , KW. 1990 . The World Wheat Market Government Intervention and Multilateral Policy Reform. (AGES 9007), USDA, Economic Research Service, Washington D.C
- OECD . 1990 . OECD Economic Studies. No 13/Winter 1989–1990, OECD Secretariat, Economics and Statistics Department, Paris
- OTTO , R-J. 1990 . South Africa in international trade. On-gepubliseerde MSc(Agric)-tesis, Universitiet van Pretoria, Pretoria
- RONINGEN , V O . 1986 . A Statistic World Policy Simulation Modeling Framework. Staff Report AGES 860625, USDA, ERS, Washington D.C
- RONINGEN , V O and DIXIT , PM. 1989 . Economic Implications of Agricultural Policy Reforms in Industrial Market Economies. (AGES 89–36), USDA, Economic Research Services, Washington D.C
- TWEETEN , L G . 1989 . Foundations of Farm Policy. Tweede uitgawe, University of Nebraska, Lincoln
- USDA . 1987 . Government Intervention in Agriculture: Measurement, Evaluation and Implications for Trade Negotiations. FAER-299, USDA, Washington D.C
- USDA . 1988 . Estimates of Producer and Consumer Subsidy Equivalents: Government Intervention in Agriculture, 1982–86. Staff Report AGES 880127, USDA, Washington D.C
- VAN HEERDEN , W and VAN ZYL , J. 1991 . 'n Kritiese bespreking van PSE's en CSE's. Referaat gelewer tydens die 1991 LEVSA-konferensie, Port Elizabeth: 14–16 Oktober 1991