Cita APA

Holland, G., & Holland, G. (1986). A selection of hydrological data for students. Wellington, N.Z.: National Water and Soil Conservation Authority.

Citación estilo Chicago

Holland, G., y G. Holland. A Selection of Hydrological Data for Students. Wellington, N.Z.: National Water and Soil Conservation Authority, 1986.

Cita MLA

Holland, G., y G. Holland. A Selection of Hydrological Data for Students. Wellington, N.Z.: National Water and Soil Conservation Authority, 1986.