Lua APA (7ú heag.)

ELVERS, B. Ullmann-s encyclopedia of industrial chemistry Vol.B8. VCH.

Lua i Stíl Chicago (17ú heag.)

ELVERS, Barbara. Ullmann-s Encyclopedia of Industrial Chemistry Vol.B8. VCH.

Lua MLA (8ú heag.)

ELVERS, Barbara. Ullmann-s Encyclopedia of Industrial Chemistry Vol.B8. VCH.

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