APA (7th ed.) Citation

Abbs, B., Ayton, A., & Freebairn, I. (1975). Strategies: Integrated English language materials. Longman.

Chicago Style (17th ed.) Citation

Abbs, Brian, Angela Ayton, and Ingrid Freebairn. Strategies: Integrated English Language Materials. [London]: Longman, 1975.

MLA (9th ed.) Citation

Abbs, Brian, et al. Strategies: Integrated English Language Materials. Longman, 1975.