APA (7th ed.) Citation

Billig & Howitt. (1989). Social psychology: Conflicts and continuities: an introductory textbook. Open University Press.

Chicago Style (17th ed.) Citation

Billig and Howitt. Social Psychology: Conflicts and Continuities: An Introductory Textbook. Milton Keynes: Open University Press, 1989.

MLA (9th ed.) Citation

Billig and Howitt. Social Psychology: Conflicts and Continuities: An Introductory Textbook. Open University Press, 1989.