burns,robert B. Introduction To Research Methods / Robert B.burns. Longman.
Lua i Stíl Chicago (17ú heag.)burns,robert B. Introduction To Research Methods / Robert B.burns. Longman.
Lua MLA (8ú heag.)burns,robert B. Introduction To Research Methods / Robert B.burns. Longman.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.