Haygarth, P. M. (2002). Agriculture, hydrology and water quality (1a. ed.). CABI.
Cita Chicago (17th ed.)Haygarth, P. M. Agriculture, Hydrology and Water Quality. 1a. ed. Londres: CABI, 2002.
Cita MLA (9th ed.)Haygarth, P. M. Agriculture, Hydrology and Water Quality. 1a. ed. CABI, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.