Não informado. (1921). Congressional Digest. Congressional Digest Corporation.
Chicago (17e ed.) BronvermeldingNão informado. Congressional Digest. Washington: Congressional Digest Corporation, 1921.
MLA (8e ed.) BronvermeldingNão informado. Congressional Digest. Congressional Digest Corporation, 1921.
Let op: Deze citaties zijn niet altijd 100% accuraat.