Villanueva, J. M. (1977). The chemical investigation of the stems of Uncaria Philippinensis Elm. (Fam. Rubiaceae) [microform]. Photoduplication Service. University of the Philippines Library.
Citace podle Chicago (17th ed.)Villanueva, Julieta Maullon. The Chemical Investigation of the Stems of Uncaria Philippinensis Elm. (Fam. Rubiaceae) [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citace podle MLA (9th ed.)Villanueva, Julieta Maullon. The Chemical Investigation of the Stems of Uncaria Philippinensis Elm. (Fam. Rubiaceae) [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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