Welcher, F. J. (1966). Standard methods of chemical analysis (6th ed.). Van Nostrand.
Cita Chicago Style (17a ed.)Welcher, Frank Johnson. Standard Methods of Chemical Analysis. 6th ed. New York [etc.]: Van Nostrand, 1966.
Cita MLA (9a ed.)Welcher, Frank Johnson. Standard Methods of Chemical Analysis. 6th ed. Van Nostrand, 1966.
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