Resources for the Future (U.S.), Johnson, D. G., & Clawson, M. (1964). Natural resources and international development. Published for Resources for the Future, Inc. by the John Hopkins Press.

Resources for the Future (U.S.), D. Gale Johnson, and Marion Clawson. Natural Resources and International Development. Baltimore, Maryland: Published for Resources for the Future, Inc. by the John Hopkins Press, 1964.

Resources for the Future (U.S.), et al. Natural Resources and International Development. Published for Resources for the Future, Inc. by the John Hopkins Press, 1964.