Bernardo, R. d. l. C. (1977). Sampling technique for estimation of rice stem-borer's incidence in farmer's fields [microform]. Photoduplication Service. University of the Philippines Library.
Citace podle Chicago (17th ed.)Bernardo, Renato de la Cruz. Sampling Technique for Estimation of Rice Stem-borer's Incidence in Farmer's Fields [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citace podle MLA (9th ed.)Bernardo, Renato de la Cruz. Sampling Technique for Estimation of Rice Stem-borer's Incidence in Farmer's Fields [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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