APA (7th ed.) Citation

Wolff, H. W. (1912). Co-operation in agriculture. P. S. King.

Chicago Style (17th ed.) Citation

Wolff, Henry W. Co-operation in Agriculture. London: P. S. King, 1912.

MLA (8th ed.) Citation

Wolff, Henry W. Co-operation in Agriculture. P. S. King, 1912.