Page, T. (1977). Conservation and economic efficiency: An approach to materials policy. Published for Resources for the Future by the Johns Hopkins University Press.
Lua i Stíl Chicago (17ú heag.)Page, Talbot. Conservation and Economic Efficiency: An Approach to Materials Policy. Baltimore: Published for Resources for the Future by the Johns Hopkins University Press, 1977.
Lua MLA (9ú heag.)Page, Talbot. Conservation and Economic Efficiency: An Approach to Materials Policy. Published for Resources for the Future by the Johns Hopkins University Press, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.