APA

United States, . (1998). Mammography: hearings before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Fifth Congress, first session, special hearings, February 5, 1997--Washington, DC ; February 20, 1997--Philadelphia, PA ; February 24, 1997--Pittsburgh, PA ; March 3, 1997--Hershey, PA. Washington: U.S. G.P.O.

Chicago

United States, . 1998. Mammography: hearings before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Fifth Congress, first session, special hearings, February 5, 1997--Washington, DC ; February 20, 1997--Philadelphia, PA ; February 24, 1997--Pittsburgh, PA ; March 3, 1997--Hershey, PA. Washington: U.S. G.P.O.

Harvard

United States, . (1998). Mammography: hearings before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Fifth Congress, first session, special hearings, February 5, 1997--Washington, DC ; February 20, 1997--Philadelphia, PA ; February 24, 1997--Pittsburgh, PA ; March 3, 1997--Hershey, PA. Washington: U.S. G.P.O.

MLA

United States, . Mammography: hearings before a subcommittee of the Committee on Appropriations, United States Senate, One Hundred Fifth Congress, first session, special hearings, February 5, 1997--Washington, DC ; February 20, 1997--Philadelphia, PA ; February 24, 1997--Pittsburgh, PA ; March 3, 1997--Hershey, PA. Washington: U.S. G.P.O. 1998.