Pravilnik po bezopasnostta na truda v podzemnite vŭglishtni rudnit͡s︡i
Subtitle: tekhnicheski instrukt͡s︡ii
By: [avtorski kolektiv, M. Minchev (rŭkovoditel) ... et al.].
Contributors: Minchev, M., st.n.s. inzh.
Edition: 2. perer. izd.
Publisher: Komitet po energetika
Published: 1900
Place of publication: Sofii͡a︡
Language: bul
Subjects: Mines and mineral resources -- Safety regulations -- Bulgaria.