Abrams, A. (1964). Unfinished tasks in the behavioral sciences. Williams & Wilkins.
Lua i Stíl Chicago (17ú heag.)Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Baltimore: Williams & Wilkins, 1964.
Lua MLA (9ú heag.)Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Williams & Wilkins, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.