World Statistical Congress & Bruce, W. J. (1947). World statistical congress: September 6-18, 1947, Washington, D.C. [s.n.].
Cita Chicago Style (17a ed.)World Statistical Congress y William J. Bruce. World Statistical Congress: September 6-18, 1947, Washington, D.C. [S.l.]: [s.n.], 1947.
Cita MLA (9a ed.)World Statistical Congress y William J. Bruce. World Statistical Congress: September 6-18, 1947, Washington, D.C. [s.n.], 1947.
Precaución: Estas citas no son 100% exactas.