Sigma-Aldrich Corporation. (1999). [Biochemicals and reagents: For life science research. Sigma Chemical Company.
Style de citation Chicago (17e éd.)Sigma-Aldrich Corporation. [Biochemicals and Reagents: For Life Science Research. Saint Louis [Estados Unidos]: Sigma Chemical Company, 1999.
Style de citation MLA (8e éd.)Sigma-Aldrich Corporation. [Biochemicals and Reagents: For Life Science Research. Sigma Chemical Company, 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.