Cita APA (7a ed.)
Sigma-Aldrich Corporation. Biochemicals Organic Compounds for Research and Diagnostic Reagents: 1990. Sigma-Aldrich Corporation.
Cita estilo Chicago (17a ed.)
Sigma-Aldrich Corporation. Biochemicals Organic Compounds for Research and Diagnostic Reagents: 1990. Saint Louis, EUA: Sigma-Aldrich Corporation.
Cita MLA (9a ed.)
Sigma-Aldrich Corporation. Biochemicals Organic Compounds for Research and Diagnostic Reagents: 1990. Sigma-Aldrich Corporation.
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