Vista normal Vista MARC Vista ISBD

Clasif. Dewey: 371.17973 .E582a.s..9 .

E.U.A. Railroad Retirement Board

Occupational differences in separation rates for railroad workers, 1965-68 \ D- . -- Chicago: Office of the Chief Actuary, 1971. 47 p., 27 cm.

006951

Temas:
Cowen, James L., pról.
Drennan, Daniel F.
Ferrocarriles - Salarios, pensiones, etc - E U A