Open University Faculty Of Social Science : Census enumerators' books : an annotated bibliography of published workbased substantially on the nineteenth century census enumerators' books / compiled by C.G. Pearce and D.R. Mills.
Open University Social Sciences Foundation Course Team : Society and the social sciences : an introduction / edited by David Potter with James Anderson ... [et al.] for the Social Sciences Foundation Course Team at the Open University.
Opengl Architecture Review Board : OpenGL programming guide : the official guide to learning OpenGL, versions 3.0 and 3.1 / Dave Shreiner ; the Khronos OpenGL ARB Working Group