Programa za obuchenieto na uchenit͡s︡ite ot VI klas na edinnoto sredno politekhnichesko uchilishte
By: Ministerstvo na narodnata prosveta.
Publisher: Dŭrzh. izd-vo Nar. prosveta
Published: 1978
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 70