TY  - BOOK
AU  - Keith,Lawrence H.
TI  - Environmental sampling and analysis: : a practical guide/ 
SN  - 0-87371-381-8
AV  - TD 193 .K45 1991
PY  - 1991///
CY  - Chelsea: 
PB  - Lewis Publishers
KW  - Environmental monitoring
KW  - Environmental chemistry
N1  - Includes bibliographical references and index
ER  -