Lowe, J. F., & Lewis, D. (1980). The economics of environmental management. P. Allan.
Lua i Stíl Chicago (17ú heag.)Lowe, J. F., agus David Lewis. The Economics of Environmental Management. Deddington, Oxford: P. Allan, 1980.
Lua MLA (9ú heag.)Lowe, J. F., agus David Lewis. The Economics of Environmental Management. P. Allan, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.