Παραπομπή σε μορφή APA (7η εκδ.)

Von Braun, J., & Puetz, D. (1993). Data needs for food policy in developing countries: New directions for household surveys. International Food Policy Research Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Von Braun, Joachim, και Detlev Puetz. Data Needs for Food Policy in Developing Countries: New Directions for Household Surveys. .Washington, D.C: International Food Policy Research Institute, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Von Braun, Joachim, και Detlev Puetz. Data Needs for Food Policy in Developing Countries: New Directions for Household Surveys. International Food Policy Research Institute, 1993.