Werner, P. K., Spaventa, M., & Nelson, J. P. (2002). Interactions access: Grammar (4th ed.). .McGraw-Hill Contemporary.
Lua i Stíl Chicago (17ú heag.)Werner, Patricia K., Marilynn Spaventa, agus John P. Nelson. Interactions Access: Grammar. 4th ed. Boston, MA: .McGraw-Hill Contemporary, 2002.
Lua MLA (8ú heag.)Werner, Patricia K., et al. Interactions Access: Grammar. 4th ed. .McGraw-Hill Contemporary, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.