APA (7th ed.) Citation

Ashworth, J. A., & Clark, J. A. (1989). Stepping stones 2. Butler & Tanner Limited, Frome.

Chicago Style (17th ed.) Citation

Ashworth, Julie Autora, and John Autor Clark. Stepping Stones 2. 2-Great Britain: Butler & Tanner Limited, Frome, 1989.

MLA (9th ed.) Citation

Ashworth, Julie Autora, and John Autor Clark. Stepping Stones 2. Butler & Tanner Limited, Frome, 1989.