(1939). Vol. 11, № 3; Industrial and Engineering Chemistry. Analytical edition. 1939.
Chicago-viite (17. p.)Vol. 11, № 3; Industrial and Engineering Chemistry. Analytical Edition. 1939, 1939.
MLA-viite (9. p.)Vol. 11, № 3; Industrial and Engineering Chemistry. Analytical Edition. 1939, 1939.
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