APA (7th ed.) Citation

Ellis. (1981). Tanks of World War 2. Octopus.

Chicago Style (17th ed.) Citation

Ellis. Tanks of World War 2. London: Octopus, 1981.

MLA (8th ed.) Citation

Ellis. Tanks of World War 2. Octopus, 1981.

Warning: These citations may not always be 100% accurate.