Ayres, Q. C. (1939). Land drainage and reclamation (2a. ed.). McGraw-Hill.
Cita Chicago (17th ed.)Ayres, Quincy Claude. Land Drainage and Reclamation. 2a. ed. Nueva York: McGraw-Hill, 1939.
Cita MLA (9th ed.)Ayres, Quincy Claude. Land Drainage and Reclamation. 2a. ed. McGraw-Hill, 1939.
Atenció: Aquestes cites poden no estar 100% correctes.