TY  - BOOK
AU  - Seltzer, Meta Brown.
TI  - Drug calculations: ratio and proportion : problems for clinical practice 
SN  - 9780323077507
AV  - RS 57 .Se49 2012 
PY  - 2012///
CY  - St. Louis, Mo.
PB  - Elsevier/Saunders
N1  - Includes index
ER  -