TY JOUR TI The need of differentiated approach by choosing of technology in preparation of working liquids for sprayers KW labour protection management KW work health KW safety engineering KW management KW prevention KW aesthetics KW structural logic KW spray. JO Actual directions of scientific researches of the XXI century: theory and practice AU Bekirov, R.. PY 2016 IS 4 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov