Operations Research Great Britain : Operational research and environmental management : a new agenda : enhancing the contribution of operational research to environmental planning and management : a report to the OR Society / Gerald Midgley, Martin Reynolds.; Midgley, Gerald.
Operations Surgical Data Processing : Medical image computing and computer-assisted intervention--MICCAI '99 : second international conference, Cambridge, UK, September 19-22, 1999 proceedings / Chris Taylor, Alan Colchester (eds.).; International Conference on Medical Image Computing and Computer-Assisted Intervention
Ophir Ship : The royal tour, 1901, or, The cruise of H.M.S. Ophir : being a lower deck account of their Royal Highnesses, the Duke and Duchess of Cornwall and York's voyage around the British Empire.; Price, Harry,
Ophiuroidea Ecology : Scaled polychaetes (Polynoidae) associated with ophiuroids and other invertebrates and review of species referred to Malmgrenia McIntosh and replaced by Malmgreniella Hartman with descriptions of New Taxa.; Pettibone, Marian H.
Ophiuroidea Great Britain : Subtidal brittlestar beds : an overview of dynamics and sensitivity characteristics for conservation management of marine SACs.; Hughes, David J.