Imatge:Irving Langmuir.jpg

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Irving_Langmuir.jpg??? (232 ?? 308 p??xels, mida de l'arxiu: 10 KB, tipus MIME: image/jpeg)

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en:Irving Langmuir

Source: http://perso.wanadoo.fr/philippe.boeuf/robert/portraits/images/Langmuir.jpg

Possibly originally sourced from the Chemical Heritage Foundation: http://poohbah.cem.msu.edu/Portraits/images/langmuirc.jpg

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