(1996). The path to the Ph. D: Measuring graduate attrition in the sciences and humanities. Washington, D.C.: National Academy Press.
Чикагска система за цитиранеThe Path to the Ph. D: Measuring Graduate Attrition in the Sciences and Humanities. Washington, D.C.: National Academy Press, 1996.
MLA формат за цитиранеThe Path to the Ph. D: Measuring Graduate Attrition in the Sciences and Humanities. Washington, D.C.: National Academy Press, 1996.
Внимание: Тези цитати може да не са 100% точни.