[MSDN Library June 1998] Quat: Retained Mode Sample, Quaternions for Orientation (100%)
MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Samples > SDK Samples > Graphics and Multimedia Samples > DirectX Samples
[MSDN Library June 1998] QUAT.C (0.454545454545455%)
MSDN Library Visual Studio 6.0 > Platform SDK > Reference > Code Samples > GRAPHICS > DIRECTX > QUAT