PETTIGREW, T. F. (1996). How to think like a social scientist. Longman.
Lua i Stíl Chicago (17ú heag.)PETTIGREW, Thomas F. How to Think like a Social Scientist. New York: Longman, 1996.
Lua MLA (9ú heag.)PETTIGREW, Thomas F. How to Think like a Social Scientist. Longman, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.