Rumberger, R. W. (2011). Dropping out: Why students drop out of high school and what can be done about it. Harvard University Press.
Chicago-čujuhus (17. p.)Rumberger, Russell W. Dropping Out: Why Students Drop Out of High School and What Can Be Done About It. Cambridge, Mass.: Harvard University Press, 2011.
MLA-čujuhus (9. p.)Rumberger, Russell W. Dropping Out: Why Students Drop Out of High School and What Can Be Done About It. Harvard University Press, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.