Jorgensen, D. L. (1989). Participant observation: Methodology for human studies. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Jorgensen, Danny L. Participant Observation: Methodology for Human Studies. New Delhi: Sage Publications, 1989.
Lua MLA (9ú heag.)Jorgensen, Danny L. Participant Observation: Methodology for Human Studies. Sage Publications, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.