APA (7th ed.) Citation
Abbs, B., Freebairn, I., & Davy, K. American Blueprint: Workbook. Longman.
Chicago Style (17th ed.) Citation
Abbs, Brian, Ingrid Freebairn, and Karen Davy. American Blueprint: Workbook. Londres, Inglaterra: Longman.
MLA (9th ed.) Citation
Abbs, Brian, et al. American Blueprint: Workbook. Longman.
Warning: These citations may not always be 100% accurate.