452
Okwu, Augustine S.O.
| The Rowman & Littlefield Publishing Group |
2010
453
Olsen, Torjer A.
| Oxford University Press |
2006
454
O'Malley, John W.
| The Rowman & Littlefield Publishing Group |
2010
455
Ong, Walter J.
| Routledge |
2012
456
Ortner, Sherry B.
| University of California Press |
1999
458
Palma, Robert J.
| Pickwick |
1983
459
Pandian, Jacob
| Prentice Hall |
1991
460
Pandya, Samta P.
| J.P.C.P. |
2018