Citazione APA

Russell, E. J., & Williamson, i. H. (1941). English farming. William Collins of London.

Stile di citazione Chicago

Russell, E. John, e int. Henry Williamson. English Farming. William Collins of London, 1941.

Citazione MLA

Russell, E. John, e int. Henry Williamson. English Farming. William Collins of London, 1941.