APA (7th ed.) Citation
Abbs, B., & Freebairn, I. (1990). Blueprint Intermediate: Students` Book. Longman Group UK.
Chicago Style (17th ed.) Citation
Abbs, Brian, and Ingrid Freebairn. Blueprint Intermediate: Students` Book. Harlow: Longman Group UK, 1990.
MLA (9th ed.) Citation
Abbs, Brian, and Ingrid Freebairn. Blueprint Intermediate: Students` Book. Longman Group UK, 1990.
Warning: These citations may not always be 100% accurate.