TY  - GEN
AU  - Zweig, Gunter
TI  - Analytical methods for pesticides, plant growth regulators and food additives: V 1 principles, methods and general applications
U1  - 632.  95 ANA 
CY  - Newyork, Academic press
KW  - Residue analysis-pesticides/food additives-analysis/residue analysis-dairy industry
ER  -