Flores, L. H. (1973). The regression method of estimation in multiple stage [microform]. Photoduplication Service.
Lua i Stíl Chicago (17ú heag.)Flores, Lydia H. The Regression Method of Estimation in Multiple Stage [microform]. Quezon City: Photoduplication Service, 1973.
Lua MLA (9ú heag.)Flores, Lydia H. The Regression Method of Estimation in Multiple Stage [microform]. Photoduplication Service, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.