Callangan, C. L. (1989). Handbook on collective negotiations in public sector personnel relations. Office for Personnel Relations, Civil Service Commission.
Citace podle Chicago (17th ed.)Callangan, Cardito L. Handbook on Collective Negotiations in Public Sector Personnel Relations. Quezon City: Office for Personnel Relations, Civil Service Commission, 1989.
Citace podle MLA (9th ed.)Callangan, Cardito L. Handbook on Collective Negotiations in Public Sector Personnel Relations. Office for Personnel Relations, Civil Service Commission, 1989.
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