Citazione Stile APA (7a Edizione)

Robertson, G. W. (1970). Rainfall and soil water variability with reference to land use planning. s.n.].

Citazione stile Chigago Style (17a edizione)

Robertson, Geo W. Rainfall and Soil Water Variability with Reference to Land Use Planning. [Quezon City: s.n.], 1970.

Citatione MLA (9a ed.)

Robertson, Geo W. Rainfall and Soil Water Variability with Reference to Land Use Planning. s.n.], 1970.