.Landsberg, H. H. (1964). Natural resources for U.S. growth: A look ahead to the year 2000. Published for Resources for the Future by Johns Hopkins Press.
Chicago-čujuhus (17. p.).Landsberg, Hans H. Natural Resources for U.S. Growth: A Look Ahead to the Year 2000. Baltimore: Published for Resources for the Future by Johns Hopkins Press, 1964.
MLA-čujuhus (9. p.).Landsberg, Hans H. Natural Resources for U.S. Growth: A Look Ahead to the Year 2000. Published for Resources for the Future by Johns Hopkins Press, 1964.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.