Cita APA (7a ed.)

Toy, S. (1966). A history of fortification from 3000 BC to AD 1700 (2nd ed.). Heinemann.

Cita Chicago Style (17a ed.)

Toy, Sidney. A History of Fortification from 3000 BC to AD 1700. 2nd ed. London: Heinemann, 1966.

Cita MLA (9a ed.)

Toy, Sidney. A History of Fortification from 3000 BC to AD 1700. 2nd ed. Heinemann, 1966.