Dyfyniad APA
Carr, P. J., & Kefalas, M. (2009). Hollowing out the middle: The rural brain drain and what it means for America. Beacon Press.
Dyfyniad Arddull Chicago
Carr, Patrick J., and Maria Kefalas. Hollowing Out the Middle: The Rural Brain Drain and What It Means for America. Boston, Mass.: Beacon Press, 2009.
Dyfyniad MLA
Carr, Patrick J., and Maria Kefalas. Hollowing Out the Middle: The Rural Brain Drain and What It Means for America. Beacon Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.