APA (7th ed.) Citation

(1926). Trend toward more effective use of land as shown by yield per acre of certain crops. GPO.

Chicago Style (17th ed.) Citation

Trend Toward More Effective Use of Land as Shown by Yield Per Acre of Certain Crops. [Washington]: GPO, 1926.

MLA (9th ed.) Citation

Trend Toward More Effective Use of Land as Shown by Yield Per Acre of Certain Crops. GPO, 1926.