National Research Council (U.S.). Committee on Resources and Man, National Research Council (U.S.). Division of Biology and Agriculture, & Cloud, P. (1969). Resources and man: A study and recommendations. [published by] W. H. Freeman [for the National Academy of Sciences.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Research Council (U.S.). Committee on Resources and Man, National Research Council (U.S.). Division of Biology and Agriculture, και Preston Cloud. Resources and Man: A Study and Recommendations. San Francisco: [published by] W. H. Freeman [for the National Academy of Sciences, 1969.
Παραπομπή σε μορφή MLA (9th εκδ.)National Research Council (U.S.). Committee on Resources and Man, et al. Resources and Man: A Study and Recommendations. [published by] W. H. Freeman [for the National Academy of Sciences, 1969.