ΠΟΛΥΤΕΧΝΕΙΟ 1973 ΜΕΡΟΣ 2

https://blogs.sch.gr/dmourtogia/e-taxi/%ce%b3%ce%bb%cf%89%cf%83%cf%83%ce%b1-%ce%b5%ce%84/enothta-5-17%ce%b7-n%ce%bf%ce%ad%ce%bc%ce%b2%cf%81%ce%b7/%ce%bc%ce%b9%ce%ba%cf%81%cf%8c%cf%82-%cf%84%cf%8d%ce%bc%ce%b2%ce%bf%cf%82-%ce%ba%ce%bf%ce%af%cf%84%ce%b1-%ce%bc%ce%b5-%cf%83%cf%84%ce%b1-%ce%bc%ce%ac%cf%84%ce%b9%ce%b1-%ce%ac%ce%b3/