See Allo

Urry, John

Sociology beyond societies: mobilities for the twenty-first century / John Urry

Routledge, 1999

Buku Teks SO

Statistics for the twenty-first century

edited by Florence S. Gordon and Sheldon Gordon

Mathematical Association of America, 1992

Buku Teks SO

Communication in the twenty-first century

edited by George Gerbner, Richard B. Byrne

John Wiley & Sons, 1981

Buku Teks

Russel, Fox Hon

Justice in the twenty-first century

Covendish Publishing Limited, 2000

Buku Teks

Creighton, Donald

Canadas first century 1867-1967

Macmillan, 1976

Buku Teks SO