Lua APA (7ú heag.)
Naylor, H., & Murphy, R. (1996). Essential english grammar: Supplementary exercises; with answers. CUP.
Lua i Stíl Chicago (17ú heag.)
Naylor, Helen, agus Raymond Murphy. Essential English Grammar: Supplementary Exercises; with Answers. Cambridge: CUP, 1996.
Lua MLA (9ú heag.)
Naylor, Helen, agus Raymond Murphy. Essential English Grammar: Supplementary Exercises; with Answers. CUP, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.