National Research Council. Office of Scientific Personnel. Research Division & National Institutes of Health (U.S.). (1971). Mobility of PhD's before and after the doctorate, with associated economic and educational characteristics of States. National Academy of Sciences.

National Research Council. Office of Scientific Personnel. Research Division and National Institutes of Health (U.S.). Mobility of PhD's Before and After the Doctorate, with Associated Economic and Educational Characteristics of States. Washington: National Academy of Sciences, 1971.

National Research Council. Office of Scientific Personnel. Research Division and National Institutes of Health (U.S.). Mobility of PhD's Before and After the Doctorate, with Associated Economic and Educational Characteristics of States. National Academy of Sciences, 1971.