Citazione Stile APA (7a Edizione)

Purton, R. W. (1966). Our commonwealth (5. impression.). Collins Clear-Type Press.

Citazione stile Chigago Style (17a edizione)

Purton, Rowland W. Our Commonwealth. 5. impression. London: Collins Clear-Type Press, 1966.

Citatione MLA (9a ed.)

Purton, Rowland W. Our Commonwealth. 5. impression. Collins Clear-Type Press, 1966.