אונטערשייד צווישן ווערסיעס פון "רוי:מארק"

{{דעסקריפציע||ענגליש = mechanisms whereby supply and demand confront each other and deals are made, involving places, processes and institutions in which exchanges occur (for physical venues, use Q132510 or Q330284)|דייטש=Ort, an dem Waren gehandelt werden|}}