Cita APA (7a ed.)

Boonstra, J., & de Ridder, J. (1981). Numerical modelling of groundwater basins. A user-oriented manual (1st edition.). ILRI.

Cita Chicago Style (17a ed.)

Boonstra, J., y J.A de Ridder. Numerical Modelling of Groundwater Basins. A User-oriented Manual. 1st edition. Wageningen: ILRI, 1981.

Cita MLA (8a ed.)

Boonstra, J., y J.A de Ridder. Numerical Modelling of Groundwater Basins. A User-oriented Manual. 1st edition. ILRI, 1981.