Long-Distance Observation Monoplane
Potez 37R2 Military Airplane. A Two-Place Long-Distance Observation Monoplane Aircraft Circulars - National Advisory Committee for Aeronautics - nº 152 Washington, September, 1931 Retrieved in Internet Archive
Potez 37R2 Military Airplane. A Two-Place Long-Distance Observation Monoplane Aircraft Circulars - National Advisory Committee for Aeronautics - nº 152 Washington, September, 1931 Retrieved in Internet Archive