Unstead, R. J. (1957). People in history: From Caractacus to Alexander Fleming (1. publ.). Black.
Citazione stile Chigago Style (17a edizione)Unstead, R. J. People in History: From Caractacus to Alexander Fleming. 1. publ. London: Black, 1957.
Citatione MLA (9a ed.)Unstead, R. J. People in History: From Caractacus to Alexander Fleming. 1. publ. Black, 1957.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.