Andres, N. R. (1976). The readability of selected grade five readers [microform]. Photoduplication Service. University of the Philippines Library.
Čikaški stil citiranja (17. izdanje)Andres, Nativida R. The Readability of Selected Grade Five Readers [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
MLA način citiranja (9. izdanje)Andres, Nativida R. The Readability of Selected Grade Five Readers [microform]. Photoduplication Service. University of the Philippines Library, 1976.
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