Bernardo, C. R. (1974). The analysis of petrolatum-based essential oil preparations by gas chromatography and its application to quality control [microform]. Photoduplication Service, University of the Philippines Library.
Citace podle Chicago (17th ed.)Bernardo, Crispin R. The Analysis of Petrolatum-based Essential Oil Preparations by Gas Chromatography and Its Application to Quality Control [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
Citace podle MLA (9th ed.)Bernardo, Crispin R. The Analysis of Petrolatum-based Essential Oil Preparations by Gas Chromatography and Its Application to Quality Control [microform]. Photoduplication Service, University of the Philippines Library, 1974.
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