APA-čujuhus (7. p.)
Kearl, B. (1976). Field data collection in the social sciences: Experiences in Africa and the middle East. Agricultural development council.
Chicago-čujuhus (17. p.)
Kearl, Bryant. Field Data Collection in the Social Sciences: Experiences in Africa and the Middle East. New York: Agricultural development council, 1976.
MLA-čujuhus (9. p.)
Kearl, Bryant. Field Data Collection in the Social Sciences: Experiences in Africa and the Middle East. Agricultural development council, 1976.
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