Sampson, G. S. (1978). A Staffing Model for Telephone Reference Operations.
Cita Chicago Style (17a ed.)Sampson, Gary S. A Staffing Model for Telephone Reference Operations. 1978.
Cita MLA (9a ed.)Sampson, Gary S. A Staffing Model for Telephone Reference Operations. 1978.
Precaución: Estas citas no son 100% exactas.