APA

United States, . (1948). Research laboratory in North Dakota lignite-consuming region: hearing before subcommittee, 80th Congress, 2d session, on H.R. 2453, Feb. 19, 1948. [Washington, D.C.]: .

Chicago

United States, . 1948. Research laboratory in North Dakota lignite-consuming region: hearing before subcommittee, 80th Congress, 2d session, on H.R. 2453, Feb. 19, 1948. [Washington, D.C.]: .

Harvard

United States, . (1948). Research laboratory in North Dakota lignite-consuming region: hearing before subcommittee, 80th Congress, 2d session, on H.R. 2453, Feb. 19, 1948. [Washington, D.C.]: .

MLA

United States, . Research laboratory in North Dakota lignite-consuming region: hearing before subcommittee, 80th Congress, 2d session, on H.R. 2453, Feb. 19, 1948. [Washington, D.C.]: . 1948.