Geography/History/Polity/Economics
| Format | Black and white hardcopy, Colored, ebook |
|---|---|
| Month | Geography+Economics, Geography+History, Geography+History+Economics, Geography+History+Polity, Geography+History+Polity+Economics, Geography+Polity, Geography+Polity+Economics, History+Economics, History+Polity, History+Polity+Economics, Polity+Economics |
