APA (7th ed.) Citation
Walker, E., & Elsworth, S. (1989). Blueprint intermediate: Workbook. Longman.
Chicago Style (17th ed.) Citation
Walker, Elaine, and Steve Elsworth. Blueprint Intermediate: Workbook. England: Longman, 1989.
MLA (9th ed.) Citation
Walker, Elaine, and Steve Elsworth. Blueprint Intermediate: Workbook. Longman, 1989.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.