Elemente Der Ersten Hauptgruppe; Einschl. Ammonium; - Wasserstoff - Lithium - Natrium - Kalium - Ammonium - Rubidium - Caesium (German, Paperback, Softcover Reprint of the Original 1st 1944 ed.)
Horst Schilling, Hans Spandau, Oldrich Tomaicek
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