Sistema na uchebno-vŭzpitatelnata rabota v IV-VII klas na edinnoto sredno politekhnichesko uchilishte
Subtitle: tezis
By: [avtorski kolektiv, Georgi Mavrov ... et al.].
Contributors: Mavrov, Georgi.
Publisher: Ministerstvo na nar. prosveta
Published: 1984
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 248