TY  - SER
AU  - Thiex,Nancy J.
TI  - Determination of phosphorus and potassium in commercial inorganic fertilizers by inductively coupled plasma-optical emission spectrometry: single-laboratory validation, first action 2015.18 
N1  - YS2017 M01
Sources  - Journal of AOAC International
Sources  - 99 (4) 2016 : 914-922
ISSN  - 1060-3271
ER  -