APA (7th ed.) Citation

Ackroyd, S., & Hughes, J. A. (1981). Data collection in context. Longman.

Chicago Style (17th ed.) Citation

Ackroyd, Stephen, and John A. Hughes. Data Collection in Context. London: Longman, 1981.

MLA (9th ed.) Citation

Ackroyd, Stephen, and John A. Hughes. Data Collection in Context. Longman, 1981.