Maya User's Guide: Smooth polygon meshes

Maya User's Guide: Mesh > Smooth

How can I fix my NURBS Surfaces so they are smooth and rounded and

Smooth ZBrush Docs

Mesh vs. NURBS: Which 3D Model Is Best for 3D Printing?

Autodesk Maya Online Help: Modeling in shaded mode

Maya User's Guide: Influence multiple meshes

Maya User's Guide: Influence multiple meshes

Maya, PDF, Rotation

Topology Guides

Maya Help, Smooth a mesh by adding new polygons