Whitaker, W., Mill, H. R., & Thresh, J. C. (1916). The water supply of Essex from underground sources. H.M. Stationery Off.
Chicago-referens (17:e uppl.)Whitaker, W., Hugh Robert Mill, och J. C. Thresh. The Water Supply of Essex from Underground Sources. London: H.M. Stationery Off, 1916.
MLA-referens (8:e uppl.)Whitaker, W., et al. The Water Supply of Essex from Underground Sources. H.M. Stationery Off, 1916.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.