Food and Agriculture Organization of the United Nations & Zarkovich, S. S. (1961). Sampling methods and censuses. s.n.
Chicago-viite (17. p.)Food and Agriculture Organization of the United Nations ja Slobdan S. Zarkovich. Sampling Methods and Censuses. Rome: s.n, 1961.
MLA-viite (9. p.)Food and Agriculture Organization of the United Nations ja Slobdan S. Zarkovich. Sampling Methods and Censuses. s.n, 1961.
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