TY  - BOOK
AU  - Welcher, Farnk J. ed.
TI  - Standard Methods of Chemical Analysis- Vol. 2, Part A
SN  - 0442074913
U1  - 543 
PY  - 1963///,
CY  - New York, 
PB  - Van Nostrand Reinhold Company, 
KW  -  Standard Methods
KW  - Chemical Analysis
ER  -