American drug index /
American drug index /
edited by Norman F. Billups and Shirley M. Billups
- 35th ed.
- St. Louis : Facts and Comparisons, 1991
- 750 p. ; 21 cm.
0932686281
Drugs--Catalogs
Drugs--Indexes
0932686281
Drugs--Catalogs
Drugs--Indexes
