Beltran, D. G. (1973). A method of determining economical sample size for sample surveys [microform]. Photoduplication Service.
Style de citation Chicago (17e éd.)Beltran, Disodado G. A Method of Determining Economical Sample Size for Sample Surveys [microform]. Quezon City: Photoduplication Service, 1973.
Style de citation MLA (9e éd.)Beltran, Disodado G. A Method of Determining Economical Sample Size for Sample Surveys [microform]. Photoduplication Service, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.