Obstfeld, Maurice 2
Oppenheim, Alan V. 2
Oxford University Press 2
O'Connell,Sue 1
O'Dell, Felicity 1
Odden, David Arnold, 1954- 1
Olekxander, Levchyn 1
Olena, Korniyenko 1
Oliu, Walter E. 1
Operational Research Society (Great Britain) 1
Organization of English Teachers in Thailand 1
Orians, Colin 1
Osborne, Barbara Anne 1
Otran, YU.S. 1