American Oil Chemists. Official methods and recommended practices of the AOCS (6a ed.).
Lua i Stíl Chicago (17ú heag.)American Oil Chemists. Official Methods and Recommended Practices of the AOCS. 6a ed.
Lua MLA (8ú heag.)American Oil Chemists. Official Methods and Recommended Practices of the AOCS. 6a ed.
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