Wren, P., & Martin, H. (2004). High school English grammar & composition (ed.). S. Chand & Company LTD.
Lua i Stíl Chicago (17ú heag.)Wren, P.C, agus H. Martin. High School English Grammar & Composition. ed. New Delhi: S. Chand & Company LTD, 2004.
Lua MLA (9ú heag.)Wren, P.C, agus H. Martin. High School English Grammar & Composition. ed. S. Chand & Company LTD, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.