National Research Council. Office of Scientific Personnel. (1971). Mobility of PhD's before and after the doctorate, with associated economic and educational characteristics of States. National Academies Press.
Cita Chicago Style (17a ed.)National Research Council. Office of Scientific Personnel. Mobility of PhD's Before and After the Doctorate, with Associated Economic and Educational Characteristics of States. Washington (DC): National Academies Press, 1971.
Cita MLA (9a ed.)National Research Council. Office of Scientific Personnel. Mobility of PhD's Before and After the Doctorate, with Associated Economic and Educational Characteristics of States. National Academies Press, 1971.
Precaución: Estas citas no son 100% exactas.