French, H. F. Farm drainage The Principles, Processes, and Effects of Draining Land with Stones, Wood, Plows, and Open Ditches, and Especially with Tiles.
Chicago-referens (17:e uppl.)French, Henry F. Farm Drainage The Principles, Processes, and Effects of Draining Land with Stones, Wood, Plows, and Open Ditches, and Especially with Tiles.
MLA-referens (9:e uppl.)French, Henry F. Farm Drainage The Principles, Processes, and Effects of Draining Land with Stones, Wood, Plows, and Open Ditches, and Especially with Tiles.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.