McCrimmon, J. M. (1980). Writing with a purpose. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)McCrimmon, James M. Writing with a Purpose. Houghton Mifflin, 1980.
Lua MLA (8ú heag.)McCrimmon, James M. Writing with a Purpose. Houghton Mifflin, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.