TY  - BOOK
AU  - Anderson, Richard
AU  - Chapman, Norman B.
TI  - Sample pretreatment and separation : analytical chemistry by open learning
T2  - Analytical chemistry by open learning 
SN  - 0471913618
U1  - 543.02 
PY  - 1987///
CY  - Chichester
PB  - John Wiley and Sons.
KW  - Chemistry, Analytic-Programmed instruction
ER  -