Brown, H. S., Angel, D. P., & Derr, P. G. (2000). Effective environmental regulation: Learning from Poland's experience. Praeger.
Lua i Stíl Chicago (17ú heag.)Brown, Halina Szejnwald, David P. Angel, agus Patrick George Derr. Effective Environmental Regulation: Learning from Poland's Experience. Westport, Conn.: Praeger, 2000.
Lua MLA (9ú heag.)Brown, Halina Szejnwald, et al. Effective Environmental Regulation: Learning from Poland's Experience. Praeger, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.