File:Standard Nolan chart.jpg

Summary
Description English: A Nolan chart in its typical, widely used form. Date	28 June 2016 Source	Own work Author	User:Proud User https://en.wikipedia.org/wiki/File:Standard_Nolan_chart.jpg

Description English: A Nolan chart in its typical, widely used form. Date	28 June 2016 Source	Own work Author	User:Proud User https://en.wikipedia.org/wiki/File:Standard_Nolan_chart.jpg