Besag, F. P., & Levine, L. P. (1984). BASIC for teachers. Sage Publ.
Lua i Stíl Chicago (17ú heag.)Besag, Frank P., agus Leonard P. Levine. BASIC for Teachers. Beverly Hills, Calif: Sage Publ, 1984.
Lua MLA (9ú heag.)Besag, Frank P., agus Leonard P. Levine. BASIC for Teachers. Sage Publ, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.