(1938). Vol. 30, № 7; Industrial and Engineering Chemistry. Industrial Edition. 1938.
Cita Chicago (17th ed.)Vol. 30, № 7; Industrial and Engineering Chemistry. Industrial Edition. 1938, 1938.
Cita MLA (9th ed.)Vol. 30, № 7; Industrial and Engineering Chemistry. Industrial Edition. 1938, 1938.
Atenció: Aquestes cites poden no estar 100% correctes.