Ferrer, P. L. (1977). The coefficient of variation in interval estimation [microform]. Photoduplication Service. University of the Philippines Library.
Citace podle Chicago (17th ed.)Ferrer, Pilar Ledesma. The Coefficient of Variation in Interval Estimation [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citace podle MLA (9th ed.)Ferrer, Pilar Ledesma. The Coefficient of Variation in Interval Estimation [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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