Wind direction changes due to pressure gradients and Coriolis forces are fundamental meteorological facts that require no citation.
The claim states a foundational, textbook principle of meteorology regarding large-scale wind patterns (geostrophic balance, pressure gradient force, and Coriolis effect). While atmospheric dynamics papers discuss related concepts (like Ekman spirals or boundary layer veering), the specific claim is a matter of basic physical definition and everyday scientific observation (common knowledge).