Whitaker, W. (1921). The water supply of Buckinghamshire and Hertfordshire from underground sources. H.M. Stationery Off.
Citazione stile Chigago Style (17a edizione)Whitaker, W. The Water Supply of Buckinghamshire and Hertfordshire from Underground Sources. London: H.M. Stationery Off, 1921.
Citatione MLA (8a ed.)Whitaker, W. The Water Supply of Buckinghamshire and Hertfordshire from Underground Sources. H.M. Stationery Off, 1921.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.