Pledge, H. T. (1966). Science since 1500: A short history of mathematics, physics, chemistry, biology (2nd ed.). Her Majesty's Stationary Office.
Čikaški stil citiranja (17. izdanje)Pledge, Humprey Thomas. Science Since 1500: A Short History of Mathematics, Physics, Chemistry, Biology. 2nd ed. London: Her Majesty's Stationary Office, 1966.
MLA način citiranja (9. izdanje)Pledge, Humprey Thomas. Science Since 1500: A Short History of Mathematics, Physics, Chemistry, Biology. 2nd ed. Her Majesty's Stationary Office, 1966.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.