Harris, Z. (1982). A grammar of english on mathematical princicles. A Wiley-Interscience.
Lua i Stíl Chicago (17ú heag.)Harris, Zelling. A Grammar of English on Mathematical Princicles. A Wiley-Interscience, 1982.
Lua MLA (9ú heag.)Harris, Zelling. A Grammar of English on Mathematical Princicles. A Wiley-Interscience, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.