Ackles, N. M. (2006). The grammar guide: Developing language skills for academic success. The University of Michigan Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Ackles, Nancy M. The Grammar Guide: Developing Language Skills for Academic Success. Michigan: The University of Michigan Press, 2006.
Παραπομπή σε μορφή MLA (9th εκδ.)Ackles, Nancy M. The Grammar Guide: Developing Language Skills for Academic Success. The University of Michigan Press, 2006.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.