APA

Siemek J., Rybicki C., University of Mining and Metallurgy, World Petroleum Congress (14th : 1994 : Stavanger), Rybicki C. & University of Mining and Metallurgy.Perspective of methane recovery from coal beds in Poland. : .

Chicago

Siemek J, Rybicki C, University of Mining and Metallurgy, World Petroleum Congress (14th : 1994 : Stavanger), Rybicki C and University of Mining and Metallurgy.Perspective of methane recovery from coal beds in Poland. : .

Harvard

Siemek J., Rybicki C., University of Mining and Metallurgy, World Petroleum Congress (14th : 1994 : Stavanger), Rybicki C. and University of Mining and Metallurgy.Perspective of methane recovery from coal beds in Poland. : .

MLA

Siemek J, Rybicki C, University of Mining and Metallurgy, World Petroleum Congress (14th : 1994 : Stavanger), Rybicki C and University of Mining and Metallurgy.: . .