Lua APA (7ú heag.)

Enger, E., & Smith, B. (1995). Pollution and policy. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Enger, Eldon, agus Bradley Smith. Pollution and Policy. Boston: McGraw-Hill, 1995.

Lua MLA (9ú heag.)

Enger, Eldon, agus Bradley Smith. Pollution and Policy. McGraw-Hill, 1995.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.