Food and Agriculture Organization of the United Nations, African Training Centre for Agricultural Statistics, Ibadan, Nigeria, & Hodnett, G. E. (1953). Course on statistical methods for methods surveys. s.n.
Παραπομπή σε μορφή Chicago (17η εκδ.)Food and Agriculture Organization of the United Nations, Ibadan African Training Centre for Agricultural Statistics, και G. E. Hodnett. Course on Statistical Methods for Methods Surveys. Rome: s.n, 1953.
Παραπομπή σε μορφή MLA (9th εκδ.)Food and Agriculture Organization of the United Nations, et al. Course on Statistical Methods for Methods Surveys. s.n, 1953.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.