Henry, N. B. (1957). In-service education for teachers, supervisors, and administrators. Chicago Press.
Chicago-čujuhus (17. p.)Henry, Nelson B. In-service Education for Teachers, Supervisors, and Administrators. Illinois: Chicago Press, 1957.
MLA-čujuhus (9. p.)Henry, Nelson B. In-service Education for Teachers, Supervisors, and Administrators. Chicago Press, 1957.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.