Pokrovskii, N. M. (1980). Underground structures and mines: Contruction practices. Driving horizontal workings and tunnels. Mir Publishers.
Chicago Style (17th ed.) CitationPokrovskii, N. M. Underground Structures and Mines: Contruction Practices. Driving Horizontal Workings and Tunnels. Moscow: Mir Publishers, 1980.
MLA (9th ed.) CitationPokrovskii, N. M. Underground Structures and Mines: Contruction Practices. Driving Horizontal Workings and Tunnels. Mir Publishers, 1980.
Warning: These citations may not always be 100% accurate.