Uchebni programi za VI klas na edinnoto sredno politekhnichesko uchilishte.
Publisher: Glavna direkt͡s︡ii͡a︡ "Uchebna dokumentat͡s︡ii͡a︡"
Published: 1986
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 186