Popek, E. P. (2003). Sampling and analysis of environmental chemical pollutants: A complete guide. USA: Academic Press.
Παραπομπή Chicago StylePopek, Emmap P. Sampling and Analysis of Environmental Chemical Pollutants: A Complete Guide. USA: Academic Press, 2003.
Παραπομπή MLAPopek, Emmap P. Sampling and Analysis of Environmental Chemical Pollutants: A Complete Guide. USA: Academic Press, 2003.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.