Cita APA (7th ed.)
Luehring, F. W. (1939). Swimming pool standards.
Cita Chicago (17th ed.)
Luehring, Frederick William. Swimming Pool Standards. New York, 1939.
Cita MLA (9th ed.)
Luehring, Frederick William. Swimming Pool Standards. 1939.
Atenció: Aquestes cites poden no estar 100% correctes.