Ancient Egypt in AfricaDavid O'Connor, David B. O'Connor, Andrew Reid, Connor O'Brien · First published 2003Open the Tome
Constitutional Law and PoliticsDavid M. O'Brien · First published 1991 · Latest edition 2001Open the Tome
Government by the peopleJames MacGregor Burns, Thomas E. Cronin, David B. Magleby, J. W. Peltason, Tom Cronin, David O'Brien, Paul Charles Light, James Burns, James MacGregor, David M. O'Brien · First published 1952Open the Tome
