APA

Baker E. C., Grau R. H. & Finfinger G. L. (1986). Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds. Washington, DC: U.S. Dep. of the Interior, Bureau of Mines.

Chicago

Baker Eugene C, Grau Roy H and Finfinger Gerald L. 1986. Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds. Washington, DC: U.S. Dep. of the Interior, Bureau of Mines.

Harvard

Baker E. C., Grau R. H. and Finfinger G. L. (1986). Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds. Washington, DC: U.S. Dep. of the Interior, Bureau of Mines.

MLA

Baker Eugene C, Grau Roy H and Finfinger Gerald L. Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds. Washington, DC: U.S. Dep. of the Interior, Bureau of Mines. 1986.