Lua APA (7ú heag.)
American Society for Testing and Materials, ASTM Symposium on Modern Instrumental Methods of Elemental Analysis of Petroleum Products and Lubricants, & Nadkarni, R. A. (1991). Modern instrumental methods of elemental analysis of petroleum products and lubricants. ASTM.
Lua i Stíl Chicago (17ú heag.)
American Society for Testing and Materials, ASTM Symposium on Modern Instrumental Methods of Elemental Analysis of Petroleum Products and Lubricants, agus R. A. Nadkarni. Modern Instrumental Methods of Elemental Analysis of Petroleum Products and Lubricants. Philadelphia, PA: ASTM, 1991.
Lua MLA (9ú heag.)
American Society for Testing and Materials, et al. Modern Instrumental Methods of Elemental Analysis of Petroleum Products and Lubricants. ASTM, 1991.
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