Welcher, F. J. [. (1939). A manual of analytical methods and general reference for the analytical chemist and for the advanced student. vol. 3: Instrumental methods - Part A (5. ed.). New York: D. Van Nostrand.
Citación estilo ChicagoWelcher, Frank J. [ed.]. A Manual of Analytical Methods and General Reference for the Analytical Chemist and for the Advanced Student. Vol. 3: Instrumental Methods - Part A. 5. ed. New York: D. Van Nostrand, 1939.
Cita MLAWelcher, Frank J. [ed.]. A Manual of Analytical Methods and General Reference for the Analytical Chemist and for the Advanced Student. Vol. 3: Instrumental Methods - Part A. 5. ed. New York: D. Van Nostrand, 1939.
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