APA (7th ed.) Citation

Byrne, D., & Holden, S. (1976). Insight: A language practice and composition book at intermediate level. Longman.

Chicago Style (17th ed.) Citation

Byrne, Donn, and Susan Holden. Insight: A Language Practice and Composition Book at Intermediate Level. London: Longman, 1976.

MLA (9th ed.) Citation

Byrne, Donn, and Susan Holden. Insight: A Language Practice and Composition Book at Intermediate Level. Longman, 1976.