APA (7th ed.) Citation

Roberts, R., Gakonga, J., & Preshous, A. (2004). IELTS Foundation: Student's book. Macmillan Education publishers.

Chicago Style (17th ed.) Citation

Roberts, Rachael, Joanne Gakonga, and Andrew Preshous. IELTS Foundation: Student's Book. Macmillan Education publishers, 2004.

MLA (9th ed.) Citation

Roberts, Rachael, et al. IELTS Foundation: Student's Book. Macmillan Education publishers, 2004.