Lua APA (7ú heag.)
Guenther, E., & Althausen, D. The Essential oils: The constituents of essential oils. D. van Nostrand.
Lua i Stíl Chicago (17ú heag.)
Guenther, Ernest, agus Darrell Althausen. The Essential Oils: The Constituents of Essential Oils. Nueva York, EUA: D. van Nostrand.
Lua MLA (9ú heag.)
Guenther, Ernest, agus Darrell Althausen. The Essential Oils: The Constituents of Essential Oils. D. van Nostrand.
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