Flores, L. H. (1973). The regression method of estimation in multiple stage [microform]. Photoduplication Service.
Cita Chicago (17th ed.)Flores, Lydia H. The Regression Method of Estimation in Multiple Stage [microform]. Quezon City: Photoduplication Service, 1973.
Cita MLA (9th ed.)Flores, Lydia H. The Regression Method of Estimation in Multiple Stage [microform]. Photoduplication Service, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.