APA (7th ed.) Citation

Gibbons, S. R., & Morican, P. (1965). World War One. Longman.

Chicago Style (17th ed.) Citation

Gibbons, S. R., and P. Morican. World War One. London: Longman, 1965.

MLA (8th ed.) Citation

Gibbons, S. R., and P. Morican. World War One. Longman, 1965.

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