APA
United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), . (1969). Resources and man. : .
Chicago
United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), . 1969. Resources and man. : .
Harvard
United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), . (1969). Resources and man. : .
MLA
United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), United state national; academy of science national research council tresources and man. Commitee on (chairman : Preston Cloud ), . Resources and man. : . 1969.
