Brooker, R., & Corder, M. (1986). Environmental economy. E. & F. N. Spon.
Lua i Stíl Chicago (17ú heag.)Brooker, Richard, agus Matthew Corder. Environmental Economy. London: E. & F. N. Spon, 1986.
Lua MLA (9ú heag.)Brooker, Richard, agus Matthew Corder. Environmental Economy. E. & F. N. Spon, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.