APA (7th ed.) Citation

Barnsley, D. G., Assheton, P., & Barnsley, D. G. (1992). Barnsley's land options (2nd ed.). Longman.

Chicago Style (17th ed.) Citation

Barnsley, David Graham, Peter Assheton, and David Graham Barnsley. Barnsley's Land Options. 2nd ed. London: Longman, 1992.

MLA (9th ed.) Citation

Barnsley, David Graham, et al. Barnsley's Land Options. 2nd ed. Longman, 1992.