Citazione Stile APA (7a Edizione)

Theobald, G. H. (1963). Methods and machines for tile and other tube drainage. FAO of the United Nations.

Citazione stile Chigago Style (17a edizione)

Theobald, G. H. Methods and Machines for Tile and Other Tube Drainage. Rome: FAO of the United Nations, 1963.

Citatione MLA (9a ed.)

Theobald, G. H. Methods and Machines for Tile and Other Tube Drainage. FAO of the United Nations, 1963.