Kingery, D. S., & Dornenburg, D. D. (1957). Effectiveness of bleeder entries in ventilating pillared areas of bituminous-coal mines. United States Department of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationKingery, D. S., and D. D. Dornenburg. Effectiveness of Bleeder Entries in Ventilating Pillared Areas of Bituminous-coal Mines. [Washington, D.C.]: United States Department of the Interior, Bureau of Mines, 1957.
MLA (9th ed.) CitationKingery, D. S., and D. D. Dornenburg. Effectiveness of Bleeder Entries in Ventilating Pillared Areas of Bituminous-coal Mines. United States Department of the Interior, Bureau of Mines, 1957.
Warning: These citations may not always be 100% accurate.