Food and Agriculture Organization of the United Nations & Zarkovich, S. S. (1961). Sampling methods and censuses. s.n.
Cita Chicago (17th ed.)Food and Agriculture Organization of the United Nations i Slobdan S. Zarkovich. Sampling Methods and Censuses. Rome: s.n, 1961.
Cita MLA (9th ed.)Food and Agriculture Organization of the United Nations i Slobdan S. Zarkovich. Sampling Methods and Censuses. s.n, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.