Rat͡sionalno izpolzvane na toplinnata energii͡a
By: An. R. Stoi͡anov, Iv. Iliev.
Contributors: Iliev, Iv.
Publisher: Ministerstvo na gorite i gorskata promishlenost
Published: 1984
Place of publication: Sofii͡a
Language: bul
Number of pages: 152
Subjects: Energy conservation.
Notes: Bibliography: p. 152.