This category is within the scope of WikiProject Bulgaria, a collaborative effort to improve the coverage of Bulgaria on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.BulgariaWikipedia:WikiProject BulgariaTemplate:WikiProject BulgariaBulgaria articles
This category is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering articles
