Von Braun, J., & Puetz, D. (1993). Data needs for food policy in developing countries: New directions for household surveys. International Food Policy Research Institute.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Von Braun, Joachim, ба Detlev Puetz. Data Needs for Food Policy in Developing Countries: New Directions for Household Surveys. .Washington, D.C: International Food Policy Research Institute, 1993.
MLA -ийн эшлэл (9 дэх хэвлэлт)Von Braun, Joachim, ба Detlev Puetz. Data Needs for Food Policy in Developing Countries: New Directions for Household Surveys. International Food Policy Research Institute, 1993.
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