Fajardo, P. I. (1977). A study on the essential oil limnophila rugosa (Roth) Merrill (fam. scrophulariaceae) [microform]. Photoduplication Service. University of the Philippines Library.
Citace podle Chicago (17th ed.)Fajardo, Perlita Imperial. A Study on the Essential Oil Limnophila Rugosa (Roth) Merrill (fam. Scrophulariaceae) [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citace podle MLA (9th ed.)Fajardo, Perlita Imperial. A Study on the Essential Oil Limnophila Rugosa (Roth) Merrill (fam. Scrophulariaceae) [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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