WEBBER, G. (1973). Algebratic structures for teachers. Houghton Mifflin co.
Lua i Stíl Chicago (17ú heag.)WEBBER, G.Cuthbert. Algebratic Structures for Teachers. Boston: Houghton Mifflin co, 1973.
Lua MLA (9ú heag.)WEBBER, G.Cuthbert. Algebratic Structures for Teachers. Houghton Mifflin co, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.