Hasenfeld, Y. (1973). Manpower placement: Service delivery for the hard-to-employ. Institute of Labor and Industrial Relations, University of Michigan-Wayne State University.

Hasenfeld, Yeheskel. Manpower Placement: Service Delivery for the Hard-to-employ. Ann Arbor: Institute of Labor and Industrial Relations, University of Michigan-Wayne State University, 1973.

Hasenfeld, Yeheskel. Manpower Placement: Service Delivery for the Hard-to-employ. Institute of Labor and Industrial Relations, University of Michigan-Wayne State University, 1973.