Theobald, G. (1963). Methods and machines for tile and other tube drainage. FAO.
Chicago Edition CitationTheobald, G.H. Methods and Machines for Tile and Other Tube Drainage. UN: FAO, 1963.
MLA Edition CitationTheobald, G.H. Methods and Machines for Tile and Other Tube Drainage. FAO, 1963.
Warning: These citations may not always be 100% accurate.