APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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