@InCollection{Madej:2017,
author
=
"K.Madej and M.Madej and K.Witkowski",
title
=
"Procurement in the logistics system",
pages
=
"115--125",
year
=
"2017",
booktitle
=
"Systemy logistyczne w gospodarowaniu ISBN: 9788394467210",
editor
=
"red. nauk. K. Witkowski, S. Saniuk",
publisher
=
"Uniwersytet Zielonogórski",
address
=
"Zielona Góra",
}