-\helpref{wxGridSizer}{wxgridsizer}
-\helpref{wxFlexGridSizer}{wxflexgridsizer} and \helpref{wxGridBagSizer}{wxgridbagsizer}.
+\helpref{wxGridSizer}{wxgridsizer},
+\helpref{wxFlexGridSizer}{wxflexgridsizer},
+\helpref{wxWrapSizer}{wxwrapsizer}
+ and \helpref{wxGridBagSizer}{wxgridbagsizer}.