Castillo, A. V. (1977). Quartenary alkaloids of Berberis barandana Vidal [microform]. Photoduplication Service. University of the Philippines Library.
Čikaški stil citiranja (17. izdanje)Castillo, Amorita Villegas. Quartenary Alkaloids of Berberis Barandana Vidal [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
MLA način citiranja (9. izdanje)Castillo, Amorita Villegas. Quartenary Alkaloids of Berberis Barandana Vidal [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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