Citazione Stile APA (7a Edizione)

Symonds, R. W. 1. (1950). A book of English clocks (Rev. ed.). Penguin Books.

Citazione stile Chigago Style (17a edizione)

Symonds, Robert Wemyss 1889. A Book of English Clocks. Rev. ed. London: Penguin Books, 1950.

Citatione MLA (9a ed.)

Symonds, Robert Wemyss 1889. A Book of English Clocks. Rev. ed. Penguin Books, 1950.