Biochemicals and reagents for life science research / 
Sigma Chemical Company. 
 - v. :  ill. ;  23 cm.. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Sigma Chemical Company
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial catalogs<br/>Equipment and Supplies--Catalogs<br/>Life sciences--Equipment and supplies--Catalogs--Periodicals<br/>Biological reagents--Catalogs--Periodicals<br/>Biochemical engineering--Periodicals<br/>Chemicals--Catalogs--Periodicals
<br/><br/><label>LC Class. No.: </label>TP248.3.  / S54 2000