Berelson, B. (1963). The behavioral sciences today. Basic books.
Lua i Stíl Chicago (17ú heag.)Berelson, Bernard. The Behavioral Sciences Today. New york: Basic books, 1963.
Lua MLA (9ú heag.)Berelson, Bernard. The Behavioral Sciences Today. Basic books, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.